Planting calendar
April Planting Guide for San Diego Gardens: Raised Beds, Containers & In-Ground
April in San Diego offers ideal conditions to plant warm-season vegetables and herbs in raised beds, containers, and in-ground gardens. Focus on heat-tolerant crops and continue planting cool-season greens early in the month. This guide helps you maximize your garden's productivity with practical planting tips.
Plant now (quick list)
Tomatoes, Peppers, Eggplants, Basil, Zucchini, Cucumbers, Green beans, Swiss chard
Plant now
- Tomatoes
- Peppers
- Eggplants
- Basil
- Zucchini
- Cucumbers
- Green beans
- Swiss chard
- Sweet corn
Start indoors
- Melons
- Pumpkins
- Winter squash
- Okra
- Basil (for transplanting)
Avoid
- Broccoli
- Cauliflower
- Cabbage
- Brussels sprouts
- Peas
Next 2 weeks
- Harden off seedlings started indoors before transplanting
- Prepare soil with compost for summer crops
- Mulch to retain moisture and suppress weeds
- Monitor for pests like aphids and caterpillars
- Water consistently, avoiding overhead watering to reduce disease
FAQs
Can I plant tomatoes directly in the ground in April?
Yes, April is a great time to transplant tomato seedlings into the ground in San Diego, as the risk of frost is minimal.
How often should I water container plants in April?
Water container plants daily or when the top inch of soil feels dry, as containers dry out faster than in-ground beds.
Is it necessary to fertilize raised beds before planting?
Yes, enriching raised beds with compost or balanced fertilizer before planting helps support healthy growth.
What vegetables should I avoid planting in April in San Diego?
Avoid cool-season crops like broccoli and peas as they may bolt or struggle in warming temperatures.
When should I start seeds indoors for melons?
Start melon seeds indoors in April to transplant outdoors after seedlings are strong and nighttime temperatures stay warm.
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