There’s nothing quite like the promise of spring — those first green shoots pushing through the compost, the sense that the growing year has begun. Whether you’re new to gardening or have been at it for years, sowing your own seeds is one of the most rewarding (and cost-effective) ways to fill your beds with vegetables and flowers.
Choosing Good Seed
Not all seed is created equal. Supermarket seed packets may look tempting, but they’re often older stock, and some species — especially carrots, parsnips, and alliums — lose viability quickly. For reliable germination, buy from reputable suppliers who store seed correctly and list clear sow-by dates.
At Bare Acre Farm, we source much of our seed from www.bingenheimersaatgut.de, a trusted German supplier offering organic, heritage, and conventional varieties. Their range is excellent, and the quality is consistent — you’ll notice the difference.
Other dependable suppliers include Irish Seed Savers (for heritage varieties) and Green Vegetable Seeds (for tried-and-tested vegetable lines suited to Irish conditions).
Compost and Vermiculite
Start with a fine-textured, peat-free seed compost. It’s better for the environment and ideal for young roots. Look for mixes with good drainage — soggy compost leads to poor germination and damping off.
Top your trays lightly with vermiculite — a naturally occurring mineral that helps keep moisture even while letting air through. You can buy large bags that will last years; it’s well worth the small investment.
Sowing Environments & Germination Temperatures
This sounds more technical than it is. Most seeds need only a little warmth, light, and consistent moisture.
Cool-germinating seeds like lettuce, peas, spinach, and many hardy annual flowers germinate happily at 10–15°C — a bright windowsill, unheated greenhouse, or polytunnel is perfect.
Warm-germinating seeds such as tomatoes, peppers, courgettes, and some half-hardy flowers prefer 18–22°C. A warm room indoors or a simple unheated propagator will do.
You don’t need heat mats or fancy kit — just avoid big swings between day and night temperatures and protect trays from cold drafts.
Keep compost moist but never wet. Water gently from below if possible — standing the tray in a shallow tray of water for a few minutes helps avoid disturbing tiny seeds.
Seedling Care
Once your seedlings appear, give them as much light as possible to prevent stretching. A bright windowsill or polytunnel bench is fine.
Thin overcrowded seedlings early — they’ll be stronger for it.
To prevent damping off (a common fungal problem), keep air moving gently and avoid overwatering. Remove any weak or mouldy seedlings right away.
When roots start to fill the cells, pot on into a slightly larger module or small pot using good quality peat-free compost.
What (and When) to Sow
Start with what you actually like to eat or enjoy seeing in bloom. It’s easy to get carried away with catalogues!
Early spring (Feb–March): lettuce, spinach, kale, leeks, onions, hardy annual flowers like cornflowers, nigella, and larkspur.
Mid-spring (March–April): beetroot, peas, cabbage, calendula, ammi, cosmos.
Late spring (April–May): courgettes, pumpkins, beans, sunflowers, zinnias, and other frost-tender crops.
Always sow with an eye to your outdoor planting schedule. There’s no point raising healthy seedlings if the beds aren’t ready when they need transplanting. Prepare beds ahead — weed, enrich with compost, and cover to warm the soil.
In Short
Good seed, the right compost, steady moisture, and a bit of patience — that’s all it takes. You don’t need expensive gear, just attention and consistency.
Starting seeds connects you to the whole growing cycle, from the first sprout to harvest. And when those first home-grown salads or flower stems reach your kitchen table, you’ll know every bit of effort was worth it.
At Bare Acre Farm, we start thousands of seeds every spring using these same principles. Whether you’re sowing a few trays on a windowsill or filling a polytunnel, the joy is the same: the growing season begins with a single seed.
