Lesson 1
Why small spaces are perfect for cut flowers
Cut-flower growing is often presented as a field-scale endeavour — long rows, armfuls of dahlias, a dedicated cutting patch. Ignore all that. Small spaces force you to choose well, grow intensively, and harvest intelligently. The result is a rotating display of stems that would cost £8 a bunch at a florist, grown in a square metre.
The secret is succession and density. You are not trying to fill the garden with colour for months — you are engineering a supply of stems. That means sowing every three weeks, interplanting fast crops with slow ones, and choosing varieties bred for vase life rather than garden display. A single large pot can yield thirty sweet pea stems across a summer. Three window boxes of cornflowers will keep you in buttonholes from June to September.
Forget the idea that you need beds. Containers, grow bags, even deep troughs on a balcony rail work brilliantly. The advantage of pots is control: you dictate the compost, the drainage, the feeding. Most cut flowers want lean, free-draining conditions and dislike wet feet — easier to achieve in a pot than in heavy clay. If you have a sunny wall, a single climber like a sweet pea or climbing nasturtium can produce more pickable stems than a border full of bedding.
What you'll learn
- Which flowers deliver the most stems per square centimetre
- How to plan succession sowings in a single container
- When and how to harvest so the plant keeps producing
- What 'good vase life' actually means and why it matters
Common mistakes
- Growing showy garden plants that collapse indoors within hours
- Sowing everything at once and getting a glut, then nothing
- Harvesting too timidly — most annuals produce MORE when cut hard
- Using multipurpose compost in containers — it holds too much water
If you only have a shady balcony, grow foliage — ferns, hostas, astrantias — which last longer in a vase than most flowers anyway.