As the last signs of frost fade and the days stretch longer, June marks the official start of prime planting season in southern Maine. For homeowners and aspiring gardeners, this is the perfect time to turn that sunny backyard, front border, or even a patio container into a thriving oasis of fresh produce and vibrant color.
Whether you’re planting a few pots on your deck or planning a full-scale backyard garden, here’s what to know about gardening in June in southern Maine:
What to Plant Now
June is the green light for frost-sensitive plants. With the soil finally warmed, now is the time to safely plant:
- Warm-Season Vegetables: Tomatoes, peppers, eggplants, cucumbers, squash, corn, and beans can all go into the ground or containers now.
- Herbs: Basil, dill, parsley, cilantro, and chives thrive in early summer warmth.
- Annual Flowers: Add a splash of color with marigolds, zinnias, cosmos, petunias, and impatiens.
- Pollinator Favorites: Consider planting bee balm, black-eyed Susan, and coneflowers to attract butterflies and bees.
Where to Plant
- Sunny Spots: Most vegetables and flowering annuals need 6–8 hours of full sun per day. Choose a location with good drainage and easy access to water.
- Raised Beds & Containers: Great for small spaces or areas with rocky soil, raised beds and pots warm up quickly and offer excellent soil control.
- Companion Planting: Pairing certain plants together—like tomatoes with basil, or marigolds with beans—can deter pests and improve productivity.
How to Plant for Success
- Prepare the Soil: Mix in compost or aged manure to enrich the soil. A soil test can help you adjust pH and nutrients for best results.
- Water Deeply: Aim for consistent moisture, especially after transplanting. Water early in the day to reduce evaporation.
- Mulch: Add straw, bark, or leaf mulch to help retain moisture and suppress weeds.
- Stake & Support: Install tomato cages or trellises now to support growth and prevent damage later.
Bonus Tip: June is also a great time to start succession planting—planting new rows of lettuce, carrots, and beets every few weeks to keep the harvest going into fall.
Whether you're building curb appeal, growing your own food, or simply adding joy to your daily routine, gardening in June offers something for everyone. Happy planting!
Want to know more about backyard potential in your next home? Reach out—we know the properties with great garden spaces!
