What to Do With Coneflowers in June – 6 Jobs Garden Experts Never Skip to Unlock Months of Color

Coneflowers are one of the highlights of the summer garden. With their cheerful, daisy-like blooms, ability to attract bees and butterflies, and wonderfully resilient nature, it's easy to see why they're such popular perennials. I love growing them in my own garden because they're so reliable – once they start flowering, they seem to bring the whole border to life and quickly become a magnet for pollinators.

Whether you're growing some of the best coneflower varieties for vibrant color or you're still learning how to grow coneflowers successfully, a few simple jobs now can make a noticeable difference later in the season.

As temperatures increase and plants blossom, small tasks like watering deeply and deadheading early blooms can help keep coneflowers thriving. Spend a little time on them in June, and they'll reward you with a long-lasting display and a garden that's buzzing with bees, butterflies, and other welcome visitors.

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1. Water Well During Dry Spells

Coneflowers (Echinacea) are famously drought-tolerant once they're established, which is one of the reasons I enjoy growing them so much. That said, newly planted coneflowers still need regular watering while they're settling in and developing strong root systems.

Rather than reaching for the watering can every day, it's better to give plants a deep, thorough soak whenever the top inch of soil feels dry. This encourages roots to grow deeper into the ground, helping plants become more resilient as summer progresses.

However, if you grow coneflowers in pots, you'll need to keep a closer eye on them. Containers dry out much more quickly than garden beds, especially during hot weather, so potted plants often need watering more frequently.

2. Feed Sparingly

One of the biggest mistakes I see gardeners make with coneflowers is overfeeding them. These North American prairie natives are naturally adapted to relatively lean soils, so they don't need much fertilizer to thrive.

If you're wondering how to fertilize coneflowers, my advice is to keep it simple. In my own garden, I usually leave established plants alone and only add a light layer of compost around the base in June if the soil seems particularly poor. More often than not, that's all they need to put on a beautiful display.

If your plants are struggling or you're gardening in sandy or nutrient-deficient soil, a light application of a water-soluble fertilizer can give them a gentle boost. Miracle-Gro Water Soluble All Purpose Plant Food or Miracle-Gro Water Soluble Bloom Booster Flower Food Fertilizer both available from Amazon, are popular options among US gardeners and can be used sparingly to support healthy growth and flowering.

Just be careful not to overdo it. High-nitrogen fertilizers tend to produce lots of lush foliage but fewer flowers, and with coneflowers, it's those long-lasting blooms that make them such a summer favorite.

3. Keep an Eye on Newly Emerging Buds

By June, many coneflowers are beginning to set flower buds, and I always make a point of checking in on them around this time. Healthy buds now usually mean a long season of blooms ahead, so it's worth taking a few minutes every week to inspect your plants.

Keep an eye out for signs of stress, such as yellowing leaves, spotted foliage, or distorted new growth. Catching problems early is always easier than dealing with them later. Good airflow is important, too. Removing any damaged leaves and making sure plants aren't overcrowded can help reduce the risk of fungal problems as summer progresses.

If you spot early signs of disease or pest damage, a product like Bonide Captain Jack's Neem Oil from Amazon can be a useful addition to your gardening toolkit and can help keep your coneflowers looking healthy and vigorous when used according to the label instructions.

4. Deadhead Early Flowers to Encourage More Blooms

Some coneflower varieties begin blooming in early summer, and once the first flowers start to fade, it's time to deadhead coneflowers to keep the display going. Removing spent blooms encourages the plant to put its energy into producing more flowers rather than setting seed, often extending the flowering season well into late summer.

Using a clean, sharp pair of secateurs, cut the stem back to the next set of leaves or a developing flower bud. I find the Fiskars Pruning Scissors for Flower Stems from Amazon are ideal for this job because they're lightweight and make precise cuts without damaging nearby growth. If you prefer a more traditional pair of pruners, the Viagrow Non-Slip Comfort Grip Pruning Shears from The Home Depot are another excellent option.

Regular deadheading also keeps plants looking neat and tidy throughout the season. That said, I always leave a few seed heads in place later in the year. Goldfinches absolutely love them, and the dried seed heads bring lovely texture and structure to the garden well into fall.

5. Mulch Carefully

A thin layer of mulch in June can make a big difference, especially if you're heading into a stretch of hot, dry weather. Mulching helps the soil retain moisture and suppresses weeds, so your coneflowers face less competition for water and nutrients. I like to spread a light layer of compost or leaf mold around the base of my plants at this time of year, as it helps keep moisture levels more consistent and gives the soil a gentle boost.

The trick is not to overdo it. Keep mulch a few inches away from the stems and avoid piling it on too thickly, as coneflowers dislike sitting in damp conditions. A product like Miracle-Gro Organic All Natural Mulch from The Home Depot can work well for this job, provided you apply it sparingly. A light, airy layer is all coneflowers need to stay happy through the heat of summer.

6. Support Taller Varieties if Necessary

Most coneflowers are perfectly capable of supporting themselves, but taller varieties can sometimes become a little top-heavy, particularly in windy gardens or rich soil. I've learned that it's much easier to add supports in June, before the flowers fully develop, than to try and rescue flopping stems later in the season.

Natural twig supports blend beautifully into the border, but slim stakes work just as well. I like to position them behind the foliage so they're barely noticeable once the plants fill out. Garden Plant Support Stakes from Amazon are a practical option, especially if you're growing taller cultivars and want to keep everything looking neat and upright through summer.

Shop Coneflower Care for June

Coneflowers are wonderfully low-maintenance perennials, but a little attention in June can make a noticeable difference later in the season. Water deeply during dry spells, go easy on the fertilizer, deadhead early flowers, and keep plants lightly mulched to help them cope with the summer heat.

It's also worth staying on top of weeds. Weeds compete with coneflowers for water and nutrients, and removing them regularly will help your plants thrive. I find tools like Grampa’s Weeder Tool from Amazon make the job much easier, especially when tackling deep-rooted weeds without disturbing nearby plants.

Spend a few minutes on these simple tasks now, and your coneflowers should reward you with months of colorful blooms and a garden that's buzzing with bees, butterflies, and other welcome pollinators all summer long.