I live in Vacaville, CA. When can I safely plant impatiens? Also, is there an organic pesticide for fruit trees? I have a nectarine tree and it gets fungus each year.
Certified GKH Gardening Expert
Your last frost date was this past week, so it should be safe. That being said, the weather has been crazy this year, so check your 10 day forecast to make sure that the weather is not predicted to turn.
We recommend neem oil for spraying for pests and fungus. It is safe for humans, animals and beneficial bugs but works very well to control pests and fungus. Here is an article on it: