May is a good month for lavender. The plant is awake and growing, and if you look closely, you can already see the very first buds pushing through. It’s also when a little attention (or not) can make a real difference to how your lavender performs all the way through summer. Whether your lavender is in a terracotta pot on a sunny Austin balcony or a backyard border in the Pacific Northwest, here’s what your lavender actually needs from you right now.Clean it, don’t cut itThis is less like pruning and more like encouraging. If you are lucky enough to have fresh new growth, cut off the very tips, a little pinch here, a little snip there, and you will encourage the plant to branch out rather than grow straight up. This is what, over time, creates the full, rounded shape that makes lavender look so effortlessly beautiful. The golden rule: stay on the green, leafy growth. Lavender will not regenerate from cuts into the old woody base; less is more for now. According to a study in the journal MoleculesPruning encourages lavender plants to renew and bloom, and those that are pruned on a regular basis tend to live longer, making spring the perfect time to get ahead of it. Stop watering so much This is probably the most common mistake people make with lavender, and it’s an easy one to fall into. The instinct is to water more with the warmer temperatures of May, but lavender likes soil that dries out between waterings. If the soil is always wet, this is one of the fastest ways to stress the plant out or cause root rot. In fact, lavender actually prefers dry, well-drained soil in full sun, and research in the European Journal of Horticultural Science has shown that it produces more flowers in warm, sunny conditions, so your instinct to water more is often working against you. If you have it in a pot, make sure there is no water collecting in the saucer. A thin layer of gravel around the base of a garden bed is excellent at stopping moisture from hanging around the roots. Skip the fertilizerIt might seem counterintuitive, but feeding lavender often backfires. Rich soil or heavy fertilizing tends to give a lot of lush, leafy growth at the expense of flowers. This means that the plant will be a little floppy and produce fewer flowers, just the opposite of what you want. Lavender does better in leaner conditions. If your soil is noticeably poor, a very light addition of compost is fine. Other than that, just leave it alone and let it do its thing.
Regular deadheading is one of the easiest ways to extend your lavender’s bloom season well into late summer. Image Credits: Google Gemini
Clear the area around itLet the plant have some room to breathe as it fills in. Pulling weeds and removing any crowded competing plants from the base takes maybe ten minutes, but pays off noticeably. Good airflow helps to keep lavender healthier, particularly as the summer heat kicks in, and decreases the likelihood of fungal problems developing down the road. It’s a visual pleasure, too, when the base is clear, the plant’s natural structure really shows up.start harvestingSo, if you see the first flowers open up towards the end of May, go ahead and cut a few stems. Cut just above a set of leaves, bring them inside and put them in a glass of water. Sometimes it’s just those simple things that make a space feel good, like a small vase of lavender on a kitchen windowsill. It’s not just for looks either, regular trimming of stems will encourage the plant to keep on producing more. If you are not ready to harvest, at least deadhead the spent flowers as they fade. It keeps energy on new growth and not on seed production.Sun is the whole gameLavender is a plant of the Mediterranean. It grew on hot, rocky, sun-drenched hillsides, and it still wants that. If yours is in a container, May is a good time to check where it’s sitting Does it get six solid hours of direct sun? The more the better. If you take a pot from part shade to full sun, you can actually watch the plant change and flower in a couple of weeks. For in-ground lavender you can’t do much about positioning now but it is worth thinking about for any new plantings you are planning.May’s a real lavender window for you. The plant is receptive, growth is active, and the decisions you make now, even small ones, have a way of showing up clearly by July. If you get the sun, drainage and light trimming right, you’ll have a plant that not only survives summer, but thrives through it.
