help people that are outside of US you should say so and I won't waste my time. My post code is TN37 6QH
You can still type that into a search engine, and it will inform you of your zone. According to my search, it will be the equivalent of our USDA zone 8.
I am planting pistachio trees..will they be fruitful in san jacinto california? I have kermans (peter male)
That will be zones 9a and b. You can grow many pistachio cultivars, but you will need a male and female to get fruit.
This collection of articles will help with much more information on the tree:
https://www.gardeningknowhow.com/edible/nut-trees/pistachios
I hope to grow brazil nut tree, walnut, hazelnut, almond, kumquat.
These articles should help:
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-nut-trees.htm
https://www.gardeningknowhow.com/edible/nut-trees/brazil-nut/how-to-grow-brazil-nut-trees.htm
https://www.gardeningknowhow.com/edible/nut-trees/walnut/planting-walnut-trees.htm
https://www.gardeningknowhow.com/edible/nut-trees/hazelnut/grow-hazelnut-trees.htm
https://www.gardeningknowhow.com/edible/nut-trees/almonds/growing-almond-nut-trees.htm
https://www.gardeningknowhow.com/edible/fruits/kumquat/growing-kumquat-trees.htm
Contact your local extension for the chill hours in your area: https://www.gardeningknowhow.com/extension-search
I was looking at you potato article-and without zone info for US I don't know if it is applicable and couldn't seem to find a reference to your zone on the site.
We have articles that address USDA zones and plants from all over the US. Make sure that you know the USDA zone of your area, and your plants before planting, so that you can avoid issues with incompatibility.
With that being said, we have gardeners located throughout the US from several USDA zones.
For reference, here is an article that will address planting times in your zone:
I was clicking through the hardiness maps you provided. The Nevada map is not even legible. might want to fix that.
When you click on the map for a larger view, it becomes clear. Thank you for your observation.
My friend is growing one in a pot in McAllen Texas. can it be planted in the ground?
I don't see mention of the type of plant, but since it doesn't get below freezing in your area, it seems safe to say he could plant it in the ground. Usually it's the freezing weather we worry about when it comes to planting in the ground.
I now live in Frisco, Texas. What zone do I live in for growing plants. I just moved from Southern California
You are in USDA hardiness zone 8a, which means your average lowest temperature is normally between 10 to 15 degrees F. So plants you want to buy and leave outside over the winter must be able to withstand temperatures that low. Any lower and likely won't survive the winter outside unless it is protected well or brought inside.
We have lots of articles with information on planting in zone 8. Here are a few:
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-plants.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-tropical-plants.htm
https://www.gardeningknowhow.com/garden-how-to/gardening-by-zone/zone-8/zone-8-vertical-gardens.htm