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Rhododendrons
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Date Posted: Wed, Apr 26 - 3:24 pm
- I have several rhododendron bushes in my front yard. They usually bloom once a year. I would like them to bloom more often. I don’t understand why one of the bushes leaves turned completely brown and died. Will this bush come back? Should I pull it up? What can I do?
- Hello there, Rhododendrons bloom once a year, in late winter into spring depending on variety. You could add other varieties with different bloom times to extend the show. You could also add some azaleas (which are in the same family). Some of those do bloom twice a year. The variety Encore comes to mind. As for the browning of the leaves and leaf drop, a number of issues could be causing that. Poor drainage, leaf burn from too much sun, winter burn, nutrient deficiency. It's difficult to diagnose in this manner. But you can try this practice - if you give the plant plenty of time to begin spring growth—waiting until late spring—you can then scratch the bark on dead-looking branches with your fingernail. If there is green wood underneath, the branch is still alive. Leave it be and it may very well leaf out. If it's brown underneath, the branch is dead and you can prune it off. Also, you can visit one of the Master Gardeners that man the desk at your local library. Call the library to see when the Help Desk is in session. Any information you have about the plants-photos, samples, will be helpful. But sometimes you need to assess the planting environment to narrow down the problem. You can also get a soil testing kit and the results will help you improve the nutrients and condition of your soil to ensure future plant health.
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Ilex glabra-Inkberry
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Date Posted: Thu, Apr 20 - 8:37 pm
- We planted 5 ilex glabra bushes in October. One of them suddenly (within less than 12 hours) had it's leaves turn brown/black and fall off. The stalks and stems all seem fine, and it still has some leaves on one side. The other ones all seem fine, although they haven't grown much and have a few yellow/brown leaves. Do you know what happened and what we can do to protect the plants? Thank you!
- Hello there, Sorry to hear of your situation. Unfortunately, it's difficult to diagnosis from this distance. It could be soil, possibly chlorosis, maybe spider mites. First, I would contact the garden center where you purchased your plants. Often, plants are guaranteed for a year. So if you have proof of purchase I would definitely tell them about the condition of your shrubs, what they advise and what they can do for you. You could also check in with one of the Master Gardeners that man the help desks at the library branches. Check out your local library and find out what days and times the help desk is manned. It may still be difficult to diagnose without seeing the actual planting. Bring pictures and as much information about where the shrubs are situated. You can also get a kit for a soil test from the Master Gardeners, which may be helpful to ensure the future health of the 10 plants. There is also a plant clinic but again, I would start with the garden center where you made your purchase. And, of course, check in with a Master Gardener. They are a wonderful resource.
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Starting a new garden
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Date Posted: Sat, Mar 25 - 4:25 pm
- Hi! I live off of N 18th St. and my apartment building has a very large bed that has been empty for a while and that I would like to start growing in (herbs and vegetables). I plan to come pick up a soil kit to test the current soil in the bed. Is that a first step you'd recommend? After testing the soil, are there specific veggies and herbs you'd recommend for the climate/area we're in? Are there any recommended local places that I could get starters and/or transplants? I also have read that I'll likely need to turn the soil to loosen it up. Welcome suggestions. Thanks! - Marg
- Hello Marg, Nice to hear you're interested in growing food. My first question/concern is if you have cleared this project with the owners or property manager of the apartment you're living in. That would be the first item on the check list. After that, testing the soil is a necessary step. Then, depending on the results, you would add any needed amendments. You can never go wrong by adding compost to the bed. Compost is a good addition because it can lighten heavy soils and enrich sandy soils. As far as what to plant, that would really depend on what you want to plant. I would make a list of desired vegetables and herbs and then see what zone they are appropriate for. Your basic tomatoes, zucchini, basil and parsley will do fine here. The important thing is to check the zone and maturity dates for whatever you are planting. If you want to plant spinach or lettuce or similar greens be aware that they like cool temperatures so they'll need a head start. When it gets too hot they will "bolt" or go to seed and be done for the summer planting season. You can pull them and replace them with a heat-loving vegetable. They can also be planted again as a fall crop when the weather starts to cool a bit. You can find seedlings at most garden centers. I think that Lowe's, Home Depot and similar stores offer some organic seedlings. I would check about both types of stores to see if they offer what you want to plant. Please check out the Master Gardeners who man the help desks at your local library. Check in with the library to see what days and times the gardeners are available. They will give you a wealth of information and advice. Also, if you go to the Main Library there is a seed bank (in an old card catalog) near the indoor entrance. The availability of seeds waxes and wanes but it's worth a try! Good luck with your project. Happy gardening!
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Chamomile lawn
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Date Posted: Sun, Mar 05 - 1:28 am
- Hi there! We live in the Museum District, and have a very small front lawn area, currently covered in mulch, in direct sunlight. We are interested in planting a chamomile lawn there. Do you know anyone who's done this in the area? Do you know where we could source chamomile plants, as opposed to having to sprout the seeds ourselves? Any suggestions in particular? We know that once we plant it, we can't walk on it for a few months. Many thanks!
- Hello there, this is a nice idea. I'm thinking you're thinking of Roman chamomile, the perennial (the low growing version which is short lived but will self seed, which is a plus). Unfortunately, I don't have a source for chamomile plugs. However, if you have a nursery you like you could try calling them to see if they might be able to order some plugs for you so your lawn gets off to a quicker start. You may also be able to save some money by buying plugs. I know you have a small space to work with but I'm wondering if you wouldn't want to add another layer to the planting, to maximize the pollinator opportunities. It might be nice to have the ground covered with chamomile and some other plantings of echinacea or rudbeckia in a grouping or two. Either way, I think you'll be happy with the change. Good luck and happy gardening!
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Native shrubs
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Date Posted: Mon, Jan 09 - 5:37 pm
- Hello, I am looking for a shrub to plant as a privacy screen. I will be planting along the south fence line of my property; however, the fence line itself is already planted with Chinese privet trees (ugh) that can't be removed, so anything I plant may get some shade from these trees. I'm looking for something 5-6 feet tall that will provide a sight barrier without getting too bushy (I don't want it to intrude too far into my yard). Native and/or pollinator-friendly would be a big plus! Any thoughts?
- Hello there, too bad about the privet but your planting will help to bring some pollinators and wildlife into your garden. The first shrub that comes to mind is inkberry (Ilex glabra). There are many varieties of this plant out there with different mature heights. So when shopping be very careful to read the tag and ask questions about the ultimate height and width of the plant you are choosing. The plant is evergreen and has small white flowers (not terribly noticeable) in spring that develop into small dark blue to black berries. Other native choices are mountain laurel (Kalmia latifolia) and evergreen bayberry (Morella caroliniensis). Mountain laurel can grow to 12 feet or more but can also be pruned to control height and create a bushier shrub. It has beautiful blooms in spring and is evergreen. It does like some shade so maybe the privet will help with that. It does not like clay soil. Bayberry is also evergreen and can mature around 7-10 feet. It's not too particular about soils and can take shade. It has small flowers that develop into those waxy gray blue berries most people are familiar with. All these choices are native and will attract pollinators and wildlife. Best of luck with your project!
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Starting seedlings
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Date Posted: Fri, Jan 06 - 9:22 pm
- I’m having trouble understanding when I should start planting certain plants. Also, if I have to do it inside or not. I wanted to plant native wildflowers all around my yard. This is my first time doing it and I’m unsure if I should just get a raised bed or use my ground. Where can I go to get help and is there a basic planting calendar for starting?
- Hello there, The process of starting plants from seed can seem daunting. Different plants have different requirements. Your best source of information is on the seed packet. It should state whether the seed needs warmth to germinate (which would indicate that you should probably start those plants indoors, with sufficient lighting, but note that some plants don't need light to germinate but will need the lighting after germination). You'll need to know how long a seed usually takes to germinate (that will be on the seed packet). You'll need to know when it's safe (temperature/weather) to take any indoor-grown plants outside. Generally growing from seed takes labeling and record keeping. I used to grow plants that needed an indoor headstart in my basement under grow lights that could be adjusted to accommodate the increasing height of plants. It works well if you have the space. Having a check list of plant name, days to germination, date to set outside, etc. is incredibly helpful. Having the seeds labeled in their growing medium is also important. There is an alternative method that some people use called winter sowing. Which is basically making a mini greenhouse out of a container. You can use various containers (I find the large plastic bins that contained greens from the grocery store very useful but you can also use gallon jugs w/tops cut off or similar). My personal experience with winter sowing involved chard, spinach, lettuce-plants that like the cool weather. But I'm sure it will work for flowering plants as well. The beauty of winter sowing is that the light needed is easily provided by mother nature. If you have newly ripened seed, that could go straight into the ground but most people are working with seeds that have been harvested and stored and are thinking about planting in spring. Hence, things get a bit more complicated. You'll want to work backwards from the last frost date to figure out when to plant your seeds. You may be planting different seeds at different times. Richmond is between zone 7a and 7b, so April 15th seems like a reasonable last frost date (though it's possible we could have one a bit later). Keep your eye on the weather. There's lots of information online such as plant record keeping templates you can print out for your records and info about the process of winter sowing. You'll probably wind up doing a combination of indoor starts and winter sowing. Just remember, those plant packets are your best resource! Good growing !!
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Fig Culture
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Date Posted: Fri, Nov 04 - 4:59 pm
- I'm seeking a book on the propagation planting and care of a fig tree
- Hello there, I have a couple of suggestion for books on this subject. They have different 'personalities' so see which one suits you best. They are: Grow Figs Where You Think You Can't by Steven Biggs and Growing Figs in Cold Climates by Lee Reich. I would also suggest looking at the Edible Landscaping website. They sell all manner of edible plants for gardens and would be helpful in selecting a variety that you'll have the best luck with (if you don't already have a variety in mind/hand). And, of course, there is good information at the VA Tech website. I've included the link here: https://www.pubs.ext.vt.edu/content/dam/pubs_ext_vt_edu/spes/SPES-317/SPES-317.pdf. You'll want to consider site selection, preferably a micro-climate that will give your fig some insurance of getting through the winters, possible protection for winter (depending on site) and pollination requirements for starters. Good luck with your project. I think this will be a success!
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Vegetable pests
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Date Posted: Fri, Oct 07 - 9:01 pm
- Pole Beans: I planted (for the first time) some cold hardy plants at the end of summer. My pole beans grew in strong, but are now being decimated -- the leaves are bubbly and stems are severed. Some leaves have been chewed. I have been out there multiple times at various points in the day and I can't see anything. I put some sticky yellow bug catchers out there and it caught some tiny little flies and a small Beatle, but something else is still killing my vegetable. Vine Borer - Squash - Yes I had them and they killed my zucchini and spaghetti squash. I hear they overwinter. I planted several other squash plants after the annihilation of my squash (before I found out they stick around). They got 50% -- the others survived only because I covered the stem with foil to prevent the critters from entering. But, how do I extinguish them? Last question: I had two tomato issues. 1. some look like Chinese paper lanterns, with nothing inside of them, just a fragile green shell of a tomato. 2. Lots of blooms, lots of pollinators visiting, no tomatoes. You are probably thinking 'just give up gardening' - but I'm hoping to learn, so I can do better next year. Thank you. Julie
- Dear Julie, You've had a tough summer! Actually, the summer was pretty hard on many living things. I'm going to start with your tomato question first. I'm wondering what type of tomato you planted? I've never come across an issue like this so I have to wonder about the seed or transplant you used. It sounds like it's a tomatillo, rather than tomato. In regard to the non-fruiting issue, I have to wonder about when you planted the tomato, did you plant so that tomatoes would have enough time to mature? Some tomatoes require a longer time to mature and fruit. There are varieties like Early Girl which may be a better bet for you if you're planting a little later or you simply want an earlier crop when planted at the appropriate time. Those are my best guesses. Squash vine borers are tough to deal with. Organic controls for squash vine borers include growing resistant varieties-butternut or the italian heirloom summer squash-tromboncino (a vigorous vining variety), crop rotation is critical, using row covers, passive traps, and surgical removal. The beans may be affected by mexican bean beetles. It's hard to say and I'm not sure why the leaves are bubbled, could be a blight? I'm attaching a document from the VA Tech extension website. There is a good summary of tips on vegetable gardening. I think you will find it useful-- https://ext.vt.edu/lawn-garden/home-vegetables.html You seem like a very observant and dedicated gardener, those are the best qualities for good results. Do not give up!! Best of luck!
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Powdery mildew?
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Date Posted: Fri, Oct 07 - 7:05 pm
- Hi. We have a white film on the leaves of two poppy plants we transplanted over a year ago. Cosmetically, it's not pretty. But don't know if it's harmful. It is only in the last 6 months that the film has appeared. They're under a dogwood tree, didn't know if that affected them. Can you tell me if this is harmful, and if it will impact the blooms? I don't see any buds so I fear this is a problem for the plants.
- Hello there, It sounds to me that you are dealing with powdery mildew. It's a very common fungal problem, heat and humidity aid its progress. It generally doesn't kill the plant, the plant just doesn't look it's best. I don't know which type of poppy you have but I'm guessing it's one of the oriental poppies (papaver orientale), that bloom in spring? You may want to consider transplanting the poppies to a spot in full sun with good air circulation. Cut back the foliage at the end of the season and dispose of it in the trash (not the compost pile). You don't want to be harboring the spores over winter. With some more sun and air, I think you will enjoy those poppies more. Good luck!
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Native plants
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Date Posted: Thu, Sep 15 - 9:44 pm
- I have an east-facing front yard in the Museum District and have approximately 12X 6 feet of space to work with. We recently got a retaining wall put in, and so it is a fresh canvas. The space gets full sun at least half the day. I love native plants, and particularly those that would remain evergreen in the winter. Any suggestions?
- Hello there, so nice to start fresh! I'm glad to hear you are interested in using native plants. I'm assuming the space is 12 feet wide and 6 feet deep. You'll probably want to start by creating some structure with shrubs. For evergreen green shrubs you could use inkberry (ilex glabra). There are many varieties of this plant, some have a loose form whiele others have a tighter globe shape and there are large and smaller sizes as well. So there's an inkberry to fit most spaces and styles. Mountain laurel is also another lovely evergreen plant with beautiful blooms in spring. Dog hobble or more commonly just Leucothoe (axillaris) is another nice evergreen. There is a variegated variety if you want to brighten up a space. You may also want to try evergreen bayberry (morella caroliniensis). In addition to these evergreens, there is virginia sweetspire (itea virginica) which has a nice drape to its shape, panicles of white flowers and beautiful fall color. Another good shrub is pepperbush (clethra alnifolia) with white to pink flowers (depending on variety) which is wonderfully fragrant. There is a smaller-sized variety that would fit in most gardens. Many of the plants in the blueberry family - early lowbush and deerberry (vaccinum pallida+vaccinum stamineum) have gorgeous fall color and colored bare stems in winter. Their spring flowers are delicate and beautiful and their fruits add to their appeal. I know you have a small space but I wanted to give a good number of options so you can pick and choose. Once you have a plan, you can decide what you want to place where. After placing the shrubs, you can then think about adding some lovely native ferns, perennials and/or ground cover, whatever space will allow. Before deciding on plants and placement, you should have a soil test done if you haven't already. You can amend if necessary and as an annual ritual, add compost to nourish you plantings. You can get a soil test kit at your local library when the Master Gardener Help Desk is in operation. Call your local library to find out the day and time. For additional information I suggest checking out this website and using the plant guides for the Capital region and NOVA-- https://www.plantvirginianatives.org/plant-rva-natives. Best of luck with the new garden!