Chestnut mushrooms on a garden table beside a wicker basket, with a polycarbonate greenhouse behind

Can You Grow Mushrooms in a Greenhouse?

— Waldenhaus
Yes, with the right kit in the right spot. Many kits are written for indoor use, so check that yours allows a covered spot outside the house, then measure the greenhouse corner: it can get too hot, too cold or too dry for the kit’s stated range.
Ripe and green cherry tomatoes on a compact plant supported by bamboo canes

Best Compact Vegetables for Small Greenhouses

— Waldenhaus
Start with a bush tomato, a compact pepper and a small sowing of salad leaves. Add a greenhouse cucumber only if you can give its climbing growth a proper support. Judge each plant by its mature size and its care, because small fruit doesn’t always mean a small plant.
Cucumbers and crops growing in a greenhouse

How to Grow Cucumbers in a Greenhouse: The UK Season, Start to Finish

— Waldenhaus
An April sowing, one string and a steady watering can. The full UK method for greenhouse cucumbers, from all-female F1 varieties to the last fruit in October.
Close-up van een blad met fijne lichte stippen en spinsel langs de rand, het teken van spint in de kas

Spint in de kas bestrijden: herkennen, voorkomen en biologisch aanpakken

— Waldenhaus
Tagged: Growing NL
Bijgewerkt juli 2026 · leestijd ~8 min · door Waldenhaus Kort antwoord: spint gedijt in een warme, droge kas — precies de omstandigheden bij de deur en de ramen op...
Spring seed trays and young seedlings on timber staging inside a British greenhouse

What to Grow in a Greenhouse in Spring: A UK Sowing Calendar

— Waldenhaus
The question of what to grow in a greenhouse in spring has a misleading answer on most of the web: a tidy list of crops pinned to month names. The...
A tomato truss in an autumn greenhouse ripening through green, orange and red on one stem

Ripening End-of-Season Tomatoes: Get Six More Weeks

— Waldenhaus Team
By late August the calendar makes the call for you. The trusses near the top are still small and green, the light is dropping by a few minutes each evening,...
Trays of young winter salad leaves on a timber bench in an unheated greenhouse, condensation on the panels

Winter Salads: Sow in August, Pick Until March

— Waldenhaus Team
If you want salad leaves on the plate in January, the work happens in August. Sow your hardy leaves in August and September, while there is still light and warmth...
A greenhouse cucumber plant with a white powdery-mildew film dusting the upper leaf surfaces

Powdery Mildew on Greenhouse Cucumbers: Stop the Spread

— Waldenhaus Team
White powder on cucumber and courgette leaves looks like someone dusted them with flour, and the first instinct is usually to blame damp. That instinct gets powdery mildew on cucumbers...
Whiteflies on the underside of a greenhouse tomato leaf with a yellow sticky trap behind

Whitefly Under Glass: How to Actually Clear It

— Waldenhaus Team
Reach for the spray can and you will lose this fight. Greenhouse whitefly survive contact insecticides because two of their life stages, the egg and the non-feeding pupa, shrug them...
Close-up of a leaf with fine pale stippling and silk webbing along the edge, the sign of red spider mite

Red Spider Mite in the Greenhouse: Spot It and Stop It

— Waldenhaus Team
Most greenhouse trouble in a heatwave gets blamed on the watering can, so the fix feels obvious: hold off, dry things out, let the air move. Red spider mite turns...
A greenhouse tomato plant on a cane support with a ripening truss and some lower-leaf stress

What's Wrong With My Tomato Plant? A Photo Diagnostic

— Waldenhaus Team
When a tomato plant tells you something is wrong, it almost always names the cause itself. Curled leaves, a black sunken base, a split skin, hard green shoulders: each marking...
A tomato truss in a greenhouse with open yellow flowers and a few tiny green fruit just set

Why Greenhouse Fruit Isn't Setting (Tomatoes, Cucumbers, Peppers)

— Waldenhaus Team
You can grow tomatoes against the south glass, cucumbers up a string and peppers in a pot beside the door, and watch all three flower like mad in July, and...