Seasonal planting calendar & garden layout ideas

A month-by-month calendar for temperate gardens

This calendar is written for cool temperate climates such as the UK, northern Europe and USDA zones 6–8. Shift tasks two to three weeks earlier in mild coastal areas and later in cold upland gardens. The single most useful local fact is your average last frost date — tender plants go out only after it has passed.

• January–February: plant bare-root roses, hedging and fruit trees while dormant. Cut back last year's perennials and grasses in late February. Order seeds.
• March: sow hardy annuals outdoors as soil warms; sow tomatoes and chillies indoors. Divide congested clumps of perennials such as asters and hostas.
• April: plant new perennials, sow herbs, mulch beds while the soil is moist. Watch for late frosts.
• May: after the last frost, plant out tender bedding, dahlias and tomatoes. Apply the “Chelsea chop” to sedums and asters late in the month for sturdier stems.
• June–July: water new plantings deeply once a week. Shear catmint after its first flush. Harvest herbs regularly.
• August: trim lavender after flowering. Take cuttings of pelargoniums and salvias. Collect seed.
• September–October: the best months to plant perennials, shrubs and trees — warm soil, autumn rain. Plant daffodils, crocus and alliums.
• November: plant tulips (later planting reduces tulip fire). Lift dahlias in cold gardens. Leave seedheads for birds.
• December: rest, plan and sketch. Check stored bulbs and tubers. Reflect on what thrived — and remove what didn't.

Garden layout ideas, compared

The colour-themed border. Gertrude Jekyll, working in the late nineteenth and early twentieth centuries, arranged borders in graduated drifts of colour — cool blues and whites at the ends warming to reds and oranges in the centre. Her principles still shape long borders today, but they suit gardeners who enjoy regular editing.

The single-colour room. Vita Sackville-West's White Garden at Sissinghurst Castle in Kent is the most copied garden “room” in the world. Restricting colour makes even a small courtyard feel designed and calm, and it is an excellent approach for evening-use gardens, where pale flowers glow at dusk.

Matrix and naturalistic planting. Piet Oudolf's schemes at the Lurie Garden in Chicago and on the High Line use repeating grasses and perennials chosen for structure as much as flower. Plants knit together, leaving little bare soil for weeds. This is our top-ranked layout for low maintenance once established.

The gravel garden. Inspired by Beth Chatto, plants grow directly through a deep gravel mulch on free-draining soil. No lawn to mow, little watering, and self-sown seedlings are easy to edit. Ideal for sunny front gardens.

The cottage garden. Christopher Lloyd's Great Dixter in East Sussex shows the joyful exuberance of mixed, tightly packed planting. It is beautiful but demanding — staking, deadheading and constant choices — so it ranks lowest on effort.

Layout rules that save hours

Make beds no deeper than you can reach into from a path, or add stepping stones. Group plants with the same water needs together so you never water a lavender to keep a hydrangea happy. Repeat key plants along a border to unify it. Finally, replace lawn edges that need trimming with a mowing strip of brick or stone — a small change that removes a weekly chore.