How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask SpecialistMichael Your Own Question
SpecialistMichael
SpecialistMichael, MS, CSCS
Category: General
Satisfied Customers: 508
Experience:  Senior Information Specialist
65186368
Type Your Question Here...
SpecialistMichael is online now
A new question is answered every 9 seconds

I plan to grow tomatoes in a greenhouse on the west side of

This answer was rated:

I plan to grow tomatoes in a greenhouse on the west side of WA State during the
Fall and winter. I have 3 questions.

1. What is the lowest temperature I should maintain in the greenhouse?

2. What is the best artificial light available for greenhouse tomatoes?

3. Which is the best greenhouse tomatoe for the Northwest?

Thank you,

Chris
Hi Chris,

My name isXXXXX am a farm born and raised expert here on JustAnswer and as luck would have it my very first work experience outside of farming and agriculture was actually in a production greenhouse.

Generally speaking tomatos like being below 90 to 95 degrees but kept above 60 degrees, so I would say 62ish for your low point. Below that and you run the risk of slowing pollination and development of the fruit itself.

The best greenhouse growers use high pressure sodium lighting, similar to what you see in parking lot or street lamps. These will contribute to your heat production depending on your heating mat set up so keep this in mind.

As far as seed selection, Celebrity, better boy and mountain fresh tomatos tend to yield quite a bit of fruit. And these are some of the tomatos a lot of people like to eat, enjoy and are otherwise available at some supermarkets. I would say the choice is yours, but it would be worthwhile to explore your local growers to see what they are planting.
SpecialistMichael and 19 other General Specialists are ready to help you