What are the chill hours in Pima County? Answer The best option when choosing a plant that requires chill time is to look for a plant requiring 350 hours or less. We can have as few as 250 and as many as 400 or so - but generally about 350 is a safe bet.
What are the chill hours in Pima County? Answer The best option when choosing a plant that requires chill time is to look for a plant requiring 350 hours or less. We can have as few as 250 and as many as 400 or so - but generally about 350 is a safe bet.