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Blueberries and Lavender
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Date Posted: Tue, Aug 27 - 11:37 pm
- Hello, I have 3 questions - I have blueberry bushes that were not properly tended to over the summer heat. They produced lovely berries but since have grown scraggly and I need to trim them back. Is there a proper time and way to do this? I have attempted several times to take cuttings and start new plants. Failed every time. Any suggestions? I have lavender plants in front of the blueberry bushes. They are half alive and half dead. Do I need to move them? I am thinking it is from the overgrowth of limbs from the blueberry bushes but not certain. I am presently in the tedious process of soaking the ground in the evenings and pulling the grass and weeds that surround them. I appreciate your help.
- Thanks for reaching out to the Richmond Master Gardeners! You have several great questions that we will do our best to give you some guidance on: 1. When to prune blueberry bushes: The best time to prune blueberries is in late winter or early spring, just before new growth begins. This timing helps the bush recover and grow new shoots for the coming season. You could also have done some light pruning after harvesting, particularly if you noticed any dead or diseased branches. Regular, light pruning is usually better than infrequent, heavy pruning. Always make clean cuts and avoid leaving stubs, as these can become entry points for pests or diseases. 2. How to prune blueberry bushes: Start by cutting out any dead, damaged, or diseased branches. This helps improve air circulation and reduces the risk of pests and diseases. If the bush is very dense, selectively remove some of the older, thicker branches from the center of the plant to improve airflow and light penetration. This encourages better fruit development. Blueberry bushes produce the most fruit on new growth. Cut back older branches that are more than 6 years old to promote the growth of new, fruitful shoots. Aim for a well-rounded shape, which helps the bush maintain balance and supports better fruit production. Trim to keep the bush to a manageable size and shape, typically removing no more than a third of the plant's height in one season. During the growing season, you can also trim any overly vigorous shoots that might be crowding the plant, encouraging a more balanced structure. 3. Using cuttings to start new plants: The best time to take blueberry cuttings is from late summer to early fall when the wood is semi-hard but not yet fully mature. Choose cuttings from healthy, vigorous plants. Look for shoots that are not too old or too young. Ideally, the cuttings should be from the current season's growth and about 4-6 inches long. If possible, select shoots that haven't flowered, as they will have more energy to put into growing roots. - Preparing Cuttings: Make a clean cut just below a node (the point where leaves attach to the stem). This is where the roots are most likely to develop. Strip off the lower leaves, leaving a few at the top. This reduces moisture loss and encourages root growth. Although optional, dipping the cut end in rooting hormone can improve the chances of successful rooting. Rooting hormone is available in powder, gel, or liquid form. -Planting: Use a well-draining rooting medium like a mix of peat moss and perlite or sand. You can also use a commercial rooting mix. Insert the cuttings into the rooting medium about 1-2 inches deep. Firm the soil around them to ensure good contact. -Care: Keep the rooting medium consistently moist but not waterlogged. Water the cuttings gently to avoid displacing them. Cover the cuttings with a plastic bag or place them in a greenhouse or a propagation chamber to maintain high humidity. Ensure the cover does not touch the cuttings to avoid mold. Place the cuttings in a location with bright, indirect light. Avoid direct sunlight, which can be too intense for young cuttings. -Transplanting: After about 8-12 weeks, check for root development by gently tugging on the cuttings. If you feel resistance, roots have formed. Rooting can take time, so be patient and avoid disturbing the cuttings too soon. Once roots are established, transplant the cuttings into small pots with a potting mix suitable for blueberries or a mix of peat and perlite. Gradually acclimate the young plants to outdoor conditions by exposing them to more light and outdoor temperatures over a couple of weeks. 4. Caring for lavender plants: Lavender plants can be a bit finicky, but several common issues could be causing them to struggle or die. Here are a few things to think about: Lavender needs well-draining soil. Heavy, clayey, or waterlogged soils can lead to root rot. Consider improving drainage by adding sand or gravel to the soil, or planting in raised beds or containers with good drainage. Lavender prefers slightly alkaline to neutral soil, ideally with a pH between 6.7 and 7.3. You can test your soil’s pH with a kit and amend it if necessary. Lavender is drought-tolerant and doesn’t like to sit in wet soil. Water sparingly and allow the soil to dry out between waterings. Overwatering can cause root rot and other issues. While lavender prefers less frequent watering, it still needs some moisture, especially in hot, dry conditions. Ensure it gets enough water during prolonged dry spells. Lavender requires full sun to thrive, which means at least 6-8 hours of direct sunlight each day. If it’s not getting enough light, it can become leggy and weak. Lavender generally prefers temperate climates. Extreme cold or heat can stress the plant Lavender doesn’t need a lot of fertilizer. Fungal diseases like root rot, powdery mildew, and rust can affect lavender. Ensure proper spacing for air circulation and avoid overhead watering to reduce disease risk. Lavender benefits from regular pruning to maintain its shape and health. Prune after flowering to remove spent blooms and encourage new growth. Avoid cutting into old, woody stems, as they may not regenerate. Blueberries and lavender can be successfully planted together, but there are a few things to think about to ensure both plants thrive. Both blueberries and lavender prefer acidic to neutral soil. Blueberries thrive in a pH of 4.5 to 5.5, while lavender prefers a pH of around 6.7 to 7.3. This difference in pH requirements means you’ll need to find a balance or be prepared to amend the soil appropriately. Both plants need full sun to grow well. Ensure they receive at least 6-8 hours of direct sunlight each day. Both plants require well-draining soil. Blueberries are prone to root rot in poorly drained soils, and lavender, though drought-tolerant, also dislikes wet feet. Blueberries need consistent moisture, especially during the growing season, whereas lavender prefers drier conditions and is more tolerant of drought. Overwatering can lead to issues for both plants, so careful watering practices are necessary. We hope this will give you some guidance for moving forward. Happy gardening!
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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!