Gardening in Greater London
Greater London has a distinctly urban gardening character. Buildings, paving and retained warmth can make many gardens feel milder than surrounding countryside, extending opportunities for containers and tender crops. Yet the capital is not uniform: exposed roof terraces, shaded courtyards and riverside pockets create their own microclimates, while rainfall can be limited and irregular. The key is using shelter and reflected warmth without overlooking drought, wind and restricted rooting space.
The growing season in Greater London
Based on the London & the South East cities region: last spring frost late April to early May, first autumn frost November.
Cities in this region often have a long, comparatively mild growing season because buildings, paving and dense development retain warmth. Balconies and sheltered courtyards can be especially protected, though exposed roofs, parks and outer suburbs may still frost. These are approximate averages; a local cold pocket, elevation or open aspect can override the urban heat effect.
What grows well in Greater London
Tomatoes, chillies, aubergines, climbing beans, herbs and compact fruit varieties can thrive in London's warm, protected spaces. Make the most of pots, vertical growing and sunny walls, but water consistently and use mulches because containers and urban soils dry quickly. Choose shade-tolerant salad leaves, ferns and woodland perennials for enclosed gardens between buildings. Check soil quality on former building land, use clean compost in raised beds, and support pollinators with long-flowering plants.
Plan your Greater London garden
Gardening in Greater London: frequently asked questions
When is the last frost in Greater London?
The last spring frost in Greater London is typically around late April to early May, and the first autumn frost around November, based on the London & the South East cities region.
When can I start planting outdoors in Greater London?
Hardy crops can be sown from early spring. Wait until after the last frost (around late April to early May) before planting out tender crops such as tomatoes, courgettes and runner beans.
What grows well in Greater London?
Tomatoes, chillies, aubergines, climbing beans, herbs and compact fruit varieties can thrive in London's warm, protected spaces.
Frost and season figures are approximate regional averages; aspect, altitude and shelter shift them locally. Check the current London forecast before sowing tender crops. Page updated 19 Sep 2026.