Why June is Prime Time for Planting

Tips for a Thriving Summer Garden

At Donaldson’s Greenhouse & Nursery, we know that June isn’t just the start of summer—it’s one of the best months to plant! Whether you’re filling beds with annual color, adding structure with shrubs, or tucking in a few last-minute veggies, the warmer weather and longer days give plants the boost they need to take off strong.

🌺 Annuals: Color on Demand

By June, soil temperatures are warm, and the risk of frost is long gone. That means your favorite annuals—like petunias, marigolds, verbena, and million bells—can be planted with confidence.

Tips:

  • Choose heat-loving varieties for long-lasting blooms.

  • Water deeply at planting time and mulch to retain moisture.

  • Deadhead regularly to keep the color coming all summer long.

🌿 Perennials: Establish Roots Before the Heat

June is a great time to plant perennials. They’ll have plenty of time to root in before the intense heat of July and August. Coneflowers, salvias, coreopsis, and black-eyed Susans are all great June picks.

Tips:

  • Loosen soil and mix in compost to improve drainage and nutrients.

  • Space plants for their mature size—this helps with air flow and disease prevention.

  • Water consistently the first few weeks to help them get established.

🌳 Shrubs: Structure for Seasons to Come

Adding shrubs in June gives them the warm soil they need to settle in and start growing. Whether you’re creating privacy, adding foundation plantings, or just want more year-round interest, this is a smart time to plant.

Tips:

  • Dig a hole twice as wide (but no deeper) than the root ball.

  • Backfill with amended soil and water thoroughly.

  • Apply mulch to reduce weeds and keep roots cool.

🥬 Late-Season Veggies: It’s Not Too Late!

Think it’s too late for veggies? Think again. You can still plant quick-growing crops like lettuce, basil, cucumbers, zucchini, and even bush beans.

Tips:

  • Use rich, well-draining soil—add compost or a vegetable-specific mix.

  • Water in the early morning to help plants stay hydrated through the heat.

  • Watch for pests as plants mature—especially cabbage worms and aphids.


☀️ June Planting Pro Tips

Prep Your Soil
Before you plant, take time to loosen compacted soil, remove weeds, and enrich the bed with compost or slow-release fertilizer. Healthy soil is the secret to thriving plants.

Plan for Sun Exposure
June sunshine can be intense. Know your plants’ needs:

  • Full sun = 6+ hours daily

  • Part sun = 4–6 hours

  • Shade = Less than 4 hours

Water Wisely
Soak plants thoroughly after planting, then water consistently—especially during the first few weeks. Deep watering is better than frequent shallow watering. A layer of mulch helps retain moisture and reduce stress.


June is the month when the garden really comes alive—and it’s not too late to start or refresh your beds. Stop by Donaldson’s Greenhouse to explore our huge selection of annuals, perennials, shrubs, and veggies, all ready to thrive in your Hackettstown garden.

Let’s plant something beautiful—together. 🌼