When should I start balcony seeds for the best display?

Sow indoors from February to May, pot on once true leaves appear, then harden off and move outside after frost for colour from June through September.

How deep should balcony containers be?

Use 20–30 cm-deep pots with drainage; shallow bowls suit nasturtiums while sweet peas enjoy taller planters with a trellis or balcony wires to climb.

What’s the watering and feeding routine for container-only gardens?

Check daily in summer; water when the top 2 cm feel dry and feed fortnightly with a seaweed or tomato feed once calendula, amaranth, and sweet peas set buds.

How do I protect balcony plants from wind or heat?

Group pots so foliage shelters the soil, tie climbers to railings, and mulch with coco coir or pebbles to slow evaporation on exposed decks.

Balcony Gardening Seed Box flat lay – seeds for small-space gardening

Poppy ‘Pandora’ – deep red papery flowers grown in a balcony pot

Sweet Pea ‘Royal Family’ climbing – scented sweet pea for small trellises

Amaranth ‘Red Army’ – ornamental red amaranth for balcony colour

Balcony Garden Seed Box open – contents of the Herboo Balcony Gardening Seed Box

Parsley plant in a container – fresh herbs for balcony pots

Nasturtium ‘Gleam Field’ trailing plant – balcony-friendly trailing flowers

Calendula ‘Snow Princess’ – creamy calendula blooms for pots

Balcony Gardening Seed Packets – seeds for small-space gardening

Balcony Garden Seed Box

A curated seed box for small-space gardeners. Designed for balconies, patios and sunny windowsills, with climbing sweet peas, trailing nasturtiums and container-friendly herbs.

Balcony Friendly
Compact for Pots
Drought Resistant
Needs Extra Care

The Balcony Garden Grow Box is ideal for cultivating a variety of compact herbs and salad greens in limited spaces. It supports sowing from early spring to autumn, requiring regular watering and a sunny spot. Harvest fresh leaves within weeks for continuous homegrown flavour.

Sow:March–September, direct sow or start in pots
Germination:7–14 days
Grow:Full sun, well-drained soil
Water:Regular watering to keep soil moist
Harvest:Leaves ready from 4–6 weeks, pick regularly to encourage growth
Best for:Balconies, patios, windowsills

Grow in Your Garden

Seed Box for Balcony Gardening: Flowers & Herbs in Containers

Reviews

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4.7

Based on 3 reviews

100% would recommend this product

5★

4★

3★

2★

1★

3 reviews

Ammi Majus seed packet featuring illustrated laceflower blooms on a clean, minimalist background

Reviewing

Ammi Majus Seeds

26 Feb 2026

Quick Germination

Happy with how quick and easy germination was.

Robbie P.Verified buyer

Reviewing

Roman Chamomile Seeds

21 Feb 2026

Bought Chamomile

I haven't planted the seeds yet but if they're as good as the ones I've brought in the past I'll be more than happy.

Fred J.Verified buyer

Herboo Cornflower seed packet with vibrant wildflower illustration on a clean background

Reviewing

Cornflower Seeds

21 Feb 2026

LOVED

Got sent them as a gift and loved the instructions on sowing - very helpful

Posey C.Verified buyer

Balcony Garden Seed Box