Plant Zone 10 is a beautiful place to live. In these areas, the winters aren’t too chilly and hardly ever dip into icky freezing temps. The summers are warm, sunny, and gorgeous. Miami, Los Angeles, Tampa, San Jose, San Francisco, San Diego, and Phoenix are just a few cities that have this sun kissed Zone 10 weather.

Plant Zone 10 is split into two subzones, Zone 10a and 10b. Zone 10a has a minimum average winter temperature of 30 degrees F to 35 degrees F. Zone 10b is a bit warmer, and has a minimum average winter temperature of 35 degrees F to 40 degrees F. Because of these temperatures, you often see more tropical plants thriving here! Because most winters don’t have freezes, many more plants can survive here that don’t cope well with the cold. On the other hand, you have to be careful of the blazing temperatures that can sometimes burn or kill your plants. 

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Which Plants Grow Well in Zone 10?  Exotic fruit trees, tropical flowers, and cool season veggies love Zone 10 weather. There are some beautiful options that thrive indoors and outdoors for flowers, such as:

  • Peace Lily (Spathiphyllum): Peace Lilies have white, gorgeous blooms and it requires only medium light! With only moderate humidity and water needs, this plant brings relaxed vibes to any space.
  • Flamingo Flower (Red Anthurium): Outside, the red, striking Flamingo Flower does great as in early morning sun, as long as the nights stay above 60 degrees F. As soon as it starts getting chilly, bring it in and place it in bright, indirect light!
  • Kalanchoe: Technically a long-blooming succulent, this plant does great in bright, indirect light and is extremely hardy, not needing any added humidity and having low water requirements. These plants also do well outside during the hottest months, just make sure to bring it inside before the night temps hit 60!

Gardening Tips

  • Because of the extremely long growing season in Zone 10, many gardeners here are still pulling things out from their gardens deep into the winter months. Many fall crops that are staples in other Zones will grow great here during the whole winter season, much to the jealousy of gardeners from other Zones! Because of the long, warm summer months, you get access to what is called “second summer.” If you start summer crops indoors around January or February, then plant them as soon as the weather is warmer, you can start a whole second round of seeds! You then will have two full summer harvests.

  • Because of the heat, there are a few precautions you should take in Zone 10. When it is extremely hot, a mulch or similar material can help not only keep the soil from getting scorched, but will reduce water evaporation. If watering the plants as often as needed is difficult, try a drip water system. Remember to do soil tests and add fertilizer or compost as needed to renew the soil. Shade cloths are also helpful in case of very high temps, but be careful as blocking too much light will starve your plants!

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