level 1. It is a snow storm today so added protection I put an old blanket on my plants. I opted to keep my Palram greenhouse unheated. I keep my lettuces as you do… letting them freeze and thaw and they come back just fine. Depends on the greenhouse and the kind of winter you are getting. Flats in a greenhouse do dry up fairly quickly.

This is true whether you are gardening in the middle of summer or in the throes of winter. So, You cannot sow tomatoes inside your unheated greenhouse when its frost outside.

I use a lot of peat pots and peat based soils so this can be a problem for me. Cucumber seed should be sown singly either in 7.5cm (3in) pots or spaced 2.5cm (1in) apart in boxes or pans. Thank you for your post! 67% Upvoted. Monitor the temperature inside your greenhouse to make sure it is warm enough for the tomato plants. Once the temperature in the greenhouse begins to warm up those seeds sprout. It all depends on your climate, and what you hope to grow or store inside the greenhouse at various times of year! Most gardeners grow tomatoes in a cold greenhouse (unheated) where a minimum temperature is 28°F (-2°C) . Fill a seed tray with compost (any multi-purpose compost) and flatten the compost down lightly using a tamper. Avoid wasting energy and money on maintaining higher temperatures than your plants really need.

120 m² vegetation hall. Spinach and slow bolt cilantro does the best. 162 m² ungeheizte Gewächshausfläche mit Folieneindeckung. I have a little 4x6' greenhouse, this is my first year using it. When planting tomato seeds outdoors - sow late March to early April. This year there just wasn’t time. Depending on the greenhouse, it will keep the temperature inside a couple of degrees warmer than it is outside at night, but not much more than that. save hide report.
Log in or sign up to leave a comment log in sign up. I'm in zone 7B and the greenhouse is shaded until around 9, then still partially shaded until 10 or 11 and then it gets the full brunt of the afternoon sun. A lot of greenhouse gardening concerns revolve around temperature. best. They need lots of light which means the greenhouse needs to be in a place with full sun or there needs to be supplemental lighting. Reply. Isis Loran says. As a bare minimum, you can keep your heated greenhouse frost free at 3C (37F), but tender plants like pelargoniums, half hardy fuchsias and citrus trees are happier with a minimum temperature of 7C (45F), and safest at 10C (50F)..

Sow radishes and carrots in the greenhouse border, first working in some peat and a light dressing of Growmore fertilizer.
share. For winter and early spring gardening, however, the first thing you need to decide is whether or not you will be heating your greenhouse. So you can move tomatoes to greenhouse in late April or early May. www.gem.uni-hannover.de. Place seeds on the surface of the compost, space the seeds evenly and sow a few more than you need.