April Indoor Gardening Calendar: What to Plant and When

April is an exciting month for indoor gardeners. As the weather warms up, it’s the perfect time to start planting a variety of vegetables, herbs, and flowers indoors. With the right timing, you can enjoy fresh produce and beautiful blooms all season long. This guide will help you plan your indoor gardening activities for April.

Indoor Gardening Tips for April

Indoor gardening in April requires attention to light, temperature, and watering. Ensure your plants receive plenty of natural sunlight, ideally near south-facing windows. Maintain a consistent temperature between 65°F and 75°F (18°C – 24°C). Water your plants when the top inch of soil feels dry, but avoid overwatering to prevent root rot. Using grow lights can supplement natural light, especially on cloudy days.

What to Plant in April

Herbs

  • Basil
  • Cilantro
  • Parsley
  • Mint
  • Chives

Vegetables

  • Cherry tomatoes
  • Bell peppers
  • Leaf lettuce
  • Spinach
  • Radishes

Flowers

  • Petunias
  • Marigolds
  • Begonias
  • Geraniums
  • Impatiens

Planting Schedule for April

In April, you can start sowing seeds indoors for many herbs and vegetables. Use seed trays or pots with quality potting mix. Keep seedlings in a warm, bright spot and maintain even moisture. Transplant seedlings to larger containers as they grow, and gradually introduce them to outdoor conditions if you plan to move them outside later in the season.

Early April

  • Sow basil, cilantro, and parsley indoors
  • Start tomato and pepper seeds indoors
  • Plant flower seeds like marigolds and petunias in containers

Mid to Late April

  • Harden off seedlings before transplanting outdoors
  • Transplant herbs and vegetables into larger pots
  • Continue sowing fast-growing flowers indoors

Additional Tips for a Successful Indoor Garden

Regularly monitor your indoor garden for pests and diseases. Use organic solutions when necessary. Rotate your plants periodically to ensure even growth. Fertilize with a balanced, water-soluble fertilizer every few weeks. Keep a gardening journal to track what you plant and when, helping you plan better for future seasons.

Enjoy the beauty and bounty of your indoor garden this April. Happy planting!