This zone covers regions such as southern Florida, parts of southern California, and large portions of Hawaii. The mild winters and hot, humid summers offer perfect conditions for tropical and subtropical plants. Frost is almost non-existent here, so you don’t need to worry about cold protection. Instead, attention should be placed on managing heat, water, and shading throughout the growing season.


Shading and Irrigation Tips
In this climate, one of the most critical tasks for gardeners is protecting plants from intense sun exposure. Providing partial shade using fabric covers or shade cloth can protect more delicate vegetables from overheating or sunburn. Regular watering becomes vital, especially during the hottest months.
For smaller home gardens, an oscillating sprinkler system can be an easy and effective option to ensure even watering. The best time to water is early in the morning, allowing the moisture to penetrate the soil before the heat of the day causes evaporation.

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States that Fall in Under Zone 10
- 10a: Arizona, California, Florida, Hawaii, Louisiana, Texas
- 10b: California, Florida, Hawaii
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