Planting calendar
April Planting Guide for Houston, TX: Raised Beds, Containers & In-Ground Gardens
April in Houston offers warm soil and longer days, ideal for planting warm-season vegetables and flowers in raised beds, containers, and in-ground gardens. Focus on heat-tolerant crops and transplanting seedlings started earlier indoors. Avoid frost-sensitive plants until the risk of cold snaps passes.
Plant now (quick list)
Tomatoes, Peppers, Eggplants, Okra, Sweet potatoes, Basil, Cucumbers, Beans
Plant now
- Tomatoes
- Peppers
- Eggplants
- Okra
- Sweet potatoes
- Basil
- Cucumbers
- Beans
- Southern peas
- Sunflowers
Start indoors
- Pumpkins
- Winter squash
- Melons
- Corn
- Watermelon
- Zucchini
- Herbs like dill and cilantro
- Chilies
- Malabar spinach
- Malva
Avoid
- Cool-season crops like broccoli and cabbage (transplant only if hardened off)
- Potatoes (harvest time approaching, avoid new planting)
- Leafy greens that bolt quickly in heat
- Root crops sensitive to heat like carrots
- Frost-sensitive seedlings not yet hardened off
- Peas (best planted earlier in cooler months)
- Brussels sprouts
- Cauliflower
- Kale
- Spinach
Next 2 weeks
- Harden off indoor seedlings before transplanting
- Mulch raised beds and containers to retain moisture
- Monitor for early pests like aphids and caterpillars
- Begin regular watering schedules as temperatures rise
- Thin seedlings in in-ground beds for better growth
- Start trellises for climbing plants like cucumbers and beans
- Apply balanced fertilizer to support new growth
- Check soil pH and amend if necessary
- Plant heat-tolerant herbs like oregano and thyme
- Remove any frost-damaged foliage
FAQs
Can I plant tomatoes directly in the ground in April in Houston?
Yes, April is a great time to transplant tomato seedlings outdoors as the soil has warmed and frost risk is minimal.
Should I start seeds indoors or plant directly in April?
Warm-season crops like tomatoes and peppers can be transplanted if started indoors earlier; others like beans and cucumbers can be sown directly.
How often should I water raised beds and containers in April?
Water deeply 2-3 times per week, adjusting based on rainfall and temperature to keep soil consistently moist but not waterlogged.
What pests should I watch for in April in Houston gardens?
Early pests include aphids, whiteflies, and caterpillars; regular inspection and organic controls help manage them.
Is it too late to plant cool-season vegetables in April?
Generally yes, as rising temperatures cause many cool-season crops to bolt or decline; focus on warm-season plants instead.
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