A Seasonal Planting Guide: What to Grow Each Month

One of the biggest secrets to gardening success is planting at the right time. Every month offers new opportunities to sow seeds, plant bulbs, and grow fresh flowers, herbs, and vegetables. Whether you’re gardening in the UK, the Isle of Man, or a similar climate, this month-by-month guide will help you stay on track and get the best results from your garden. Use this as your go-to calendar for what to plant, when to sow, and how to keep your garden thriving all year long.

assorted-color lear hanging decor
assorted-color lear hanging decor

🌼 January – Prep & Early Indoor Starts

January is for planning, preparing soil, and starting hardy seeds indoors.

What to plant:

  • Indoors: chillies, peppers, aubergines

  • Outdoors (mild areas): garlic, onion sets

  • Herbs indoors: basil, chives, parsley on windowsills

Tasks:
Clean tools, plan your layout, buy seeds, warm up soil covers.

🌱 February – Early Starters Begin

Daylight increases, making it perfect for early sowing.

What to plant:

  • Indoors: tomatoes, sweet peas, celery

  • Outdoors: broad beans, early peas (under cloches), hardy lettuces

  • Flowers: pansies, violas, snapdragons indoors

Tasks:
Start seeds in trays, prepare beds if soil isn’t frozen.

🌿 March – The Real Start of the Growing Season

Things start to come alive! March is a busy month for gardeners.

What to plant:

  • Vegetables: carrots, beetroot, spinach, parsnips

  • Indoors: cucumbers, courgettes, squash

  • Flowers: marigolds, sunflowers, cosmos, nasturtiums

  • Potatoes: first early potatoes go into the ground

Tasks:
Protect young plants from frost; start hardening off seedlings.

🌼 April – Peak Seed-Sowing Month

Warmer weather makes April ideal for sowing almost everything.

What to plant:

  • Vegetables: lettuce, kale, radishes, spring onions

  • Flowers: dahlias, zinnias, asters

  • Herbs: coriander, dill, basil (indoors or sheltered)

  • Potatoes: second early varieties

Tasks:
Install supports for peas & beans, mulch around perennials.

🌱 May – Planting Out Time

Frost is nearly gone, making this the perfect month for moving plants outdoors.

What to plant:

  • Vegetables: tomatoes, peppers, cucumbers, courgettes, beans

  • Flowers: bedding plants, petunias, geraniums, fuchsias

  • Herbs: basil, mint, thyme, rosemary

Tasks:
Harden off all indoor seedlings. Water consistently and protect from sudden cold nights.

🌿 June – Growth & Warm Weather Planting

Long sunny days mean rapid growth and high yields.

What to plant:

  • Fast growers: lettuce, radishes, rocket

  • Herbs: parsley, chives, coriander

  • Flowers: sunflowers, cosmos, wildflower mixes

  • Veg: sweetcorn, pumpkins, late carrots

Tasks:
Stake tall plants, begin regular feeding for fruiting crops.

🌞 July – Harvest & Quick Crops

Peak summer! Many crops are ready to pick, and there’s still time to plant more.

What to plant:

  • Salad crops: lettuce, rocket, chard

  • Late carrots, beetroot

  • Herbs: basil, dill, sage

  • Flowers: marigolds, calendula

Tasks:
Water early in the day; deadhead flowers to encourage new blooms.

🌻 August – Late Summer Planting

Now is the time to sow for autumn and winter crops.

What to plant:

  • Vegetables: kale, spinach, chard, winter lettuces

  • Flowers: hardy annuals for next spring (cornflowers, poppies)

  • Herbs: coriander for a late-season crop

Tasks:
Harvest regularly and prepare soil for autumn sowing.

🍂 September – Cool-Season Crops Begin

Temperatures drop, but the soil is still warm enough for strong growth.

What to plant:

  • Vegetables: pak choi, winter spinach, mustard greens

  • Flowers: spring bulbs (daffodils, crocus)

  • Garlic for next year

Tasks:
Mulch beds, clean up summer crops, divide perennials.

🍁 October – Autumn Planting & Prep

This is the last major planting month of the year.

What to plant:

  • Flowers: tulips, alliums, hyacinths

  • Vegetables: broad beans, garlic

  • Spinach & winter lettuce in sheltered areas

Tasks:
Add compost to beds, plant bulbs deeply, tidy up spent annuals.

November – Put the Garden to Bed

Cold arrives, and growth slows down.

What to plant:

  • Garlic

  • Broad beans (autumn varieties)

  • Winter-hardy salads in cold frames

Tasks:
Add mulch, protect pots from freezing, clean tools.

December – Rest, Plan, Reflect

A quiet gardening month, but still productive in preparation.

What to plant:

  • Indoors: microgreens, herbs

  • Outdoors: garlic (if not frozen), winter peas in mild regions

Tasks:
Review what worked, plan next year's layout, order seeds early.

🌼 Final Thoughts

A garden thrives when you plant with the seasons. By knowing what to grow each month, you’ll enjoy a continual cycle of sowing, growing, and harvesting all year long. Whether you’re a complete beginner or expanding your homestead garden, this guide keeps your planting on track and ensures success.