What to plant in Extremadura in May
May in Extremadura marks the transition from mild spring to the intense heat of the Mediterranean summer, with average maximums reaching 25.1°C. This period is the final window for establishing summer crops before the significant rainfall drop and temperature spike expected in June and July.
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Sowing
Recommended sowing
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Melon
Direct sow in hills; ensure deep soil preparation to encourage root growth before July heat.
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Watermelon
Direct sow outdoors; requires significant space for vine expansion.
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Zucchini
Direct sow 2-3 seeds per pocket and thin to the strongest plant.
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Cucumber
Direct sow near a trellis to improve air circulation and prevent fungal issues.
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Green Beans
Direct sow; bush varieties are often more resilient to wind in open plains.
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Sunflower
Direct sow; very drought tolerant once established in June.
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Okra
Direct sow now as soil temperatures are consistently above 15°C.
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Basil
Direct sow or indoor tray; pinch back tops to prevent early flowering.
Seedlings
Seedlings
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Tomato
Transplant seedlings with at least 4-6 true leaves; bury the stem deeply.
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Pepper
Space 40cm apart; provide stakes early to support heavy fruit load.
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Eggplant
Transplant only when night temperatures are reliably above 12°C.
Tasks
Monthly tasks
Apply organic mulch (straw or bark) around all plants now to preserve the 33.7mm of May rainfall and protect soil from the 30°C+ temperatures expected in June. Check for aphids and whiteflies which proliferate as temperatures rise. Install shade cloths for sensitive greens like lettuce to prevent bolting as the max temp approaches 25°C.