GuÃa de Siembra
Esta guÃa está escrita especÃficamente para las condiciones de cultivo en climas marÃtimos europeos — nuestro clima, tipos de suelo y temporada de crecimiento. Sigue estos pasos para obtener los mejores resultados con tu mezcla de flores silvestres Pollinator Seeds.
Cuándo Sembrar
Hay dos ventanas ideales de siembra:
- Otoño (septiembre — octubre): Nuestra ventana recomendada. Las semillas experimentan una estratificación frÃa natural durante el invierno, lo que conduce a una germinación más fuerte en primavera. La humedad otoñal reduce la necesidad de riego.
- Primavera (marzo — mayo): También eficaz, especialmente en zonas más frescas o septentrionales. Riega durante los perÃodos secos en las primeras 4-6 semanas.
Evita sembrar en verano (junio-agosto), cuando los perÃodos secos pueden matar las plántulas emergentes, o en invierno (noviembre-febrero), cuando el suelo está demasiado frÃo y encharcado.
GuÃa Paso a Paso
Prepara el Suelo
Las flores silvestres prefieren suelos pobres o moderados — los suelos ricos y fértiles favorecen las gramÃneas y las malas hierbas. Retira la vegetación existente cortando y rastrillando. Lo ideal es dejar la tierra al descubierto. En céspedes, corta con el cortacésped en la posición más baja y rastrilla enérgicamente.
Mezcla las Semillas con Arena
Las semillas de flores silvestres son diminutas. Para una distribución uniforme, mezcla las semillas con arena seca en proporción 3:1 (tres partes de arena por una de semillas). Esto también te ayuda a ver dónde has sembrado.
Esparce de Forma Uniforme
Esparce la mezcla de semillas y arena de manera uniforme sobre el área preparada. Para superficies más grandes, siembra en dos pasadas en ángulos rectos para mejor cobertura. No te preocupes por la perfección — la naturaleza tampoco es perfecta.
Presiona — No Entierres
Las semillas de flores silvestres necesitan luz para germinar. Presiónalas firmemente contra la superficie del suelo caminando sobre el área o usando una tabla. NO las cubras con tierra ni compost — este es el error más común.
Riega Si Es Necesario
Si siembras en otoño, la lluvia normalmente hace el trabajo por ti. Si siembras en primavera durante un perÃodo seco, riega suavemente durante las primeras 4-6 semanas hasta que las plántulas estén establecidas.
Ten Paciencia
Algunas especies germinan en 2-3 semanas, otras no aparecerán hasta la primavera siguiente. Una pradera de flores silvestres mejora considerablemente a partir del segundo año, a medida que las perennes se establecen.
Sowing Rates
Getting the sowing rate right matters. Too thick and plants compete with each other; too thin and weeds fill the gaps. Here are the recommended rates for our mixes:
| Product | Weight | Coverage | Rate |
|---|---|---|---|
| Pollinator Pocket Garden | 6g | 1–2 sq m | 3–6g per sq m |
| Pollinator Garden Mix | 30g | 6–10 sq m | 3–5g per sq m |
| Pollinator Meadow Patch | 75g | 15–25 sq m | 3–5g per sq m |
| Meadow Restoration | 500g | 100–150 sq m | 3–5g per sq m |
| Full Meadow | 1kg | 200–300 sq m | 3–5g per sq m |
| Bulk Meadow | 5kg | 1,000–1,500 sq m | 3–5g per sq m |
Tip: For overseeding into existing grassland (rather than bare soil), increase the rate to 5–7g per sq m to compensate for competition from established grass.
Mix-Specific Sowing Guidance
Our specialist mixes are designed for specific conditions. Each one needs a slightly different approach.
Bee Rescue Mix
Optimised for maximum nectar and pollen output. Sow on open, sunny ground — bees need warmth. Avoid heavily shaded areas. Works well in garden borders, along fences, and in dedicated pollinator strips. Sow at 3–5g per sq m on prepared bare soil.
Butterfly Garden Mix
Butterflies need both nectar plants (adults) and larval food plants (caterpillars). This mix includes both. Sow in a sunny, sheltered spot — butterflies avoid wind. A south-facing border backed by a wall or hedge is ideal. Leave some areas of long grass nearby for egg-laying.
Shade Meadow Mix
Designed for areas receiving less than 4 hours of direct sunlight — under trees, along north-facing walls, beneath hedgerows. These species tolerate shade but still need some light. Prepare soil as normal but expect slower establishment. Sow at 4–6g per sq m.
Clover Lawn Mix
This is an overseeding mix — sow directly into your existing lawn. Mow short, scarify vigorously with a rake to expose soil, then broadcast seed. Roll or walk over to press in. Keep mowing at 5–8cm height through the first season. The clover fixes nitrogen, feeding the lawn without fertiliser.
Bogland Pollinator Mix
For wet, acidic, peaty ground — bog margins, damp field corners, pond edges, and rushy pasture. Do not drain or lime the soil; these species need it as it is. Light surface disturbance is enough. Sow in autumn when ground is naturally moist. See our Bogland Pollinators page for the full species guide.
Pollinator Cover Crop
A fast-growing annual mix for temporary ground cover between crops or on fallow land. Sow April–August on any cultivated ground. Broadcast at 5–8g per sq m. Flowers within 6–8 weeks. Dig in or mow before the next crop. Adds organic matter, suppresses weeds, and feeds pollinators while the land would otherwise be bare.
Sowing Hedgerow Margins
The strip of ground at the base of a hedgerow — typically 1–2 metres wide — is some of the most valuable habitat on any farm. It's sheltered, undisturbed, and ideally suited to wildflowers. If you're in ACRES, you're already being paid to leave these margins uncultivated. Adding wildflowers turns a compliance requirement into a genuine biodiversity gain.
How to sow a hedgerow margin
- Timing: Autumn (September–October) is best. The hedge provides shelter, and autumn moisture aids germination.
- Preparation: Lightly disturb the surface with a rake or harrow. You don't need bare soil — just break through the thatch enough for seed-to-soil contact. Heavy cultivation is unnecessary and disrupts the root network of the hedge.
- Sowing: Use our Pollinator Garden Mix or Shade Meadow Mix (for north-facing hedges). Sow at 4–6g per sq m. Mix with sand as usual for even distribution.
- Species to expect: Foxglove, red campion, primrose, wild garlic, hedge woundwort, and other woodland-edge species will establish naturally alongside your sown wildflowers. The hedge provides seed sources of its own.
- Management: Cut once a year in late September — after the hedge cutting season opens. Remove cuttings. Do not spray the margin.
Hedgerows and wildflower margins are not separate habitats — they are two halves of the same system. Get the hedge management right, sow the right seed at the base, and you have a corridor of life running through your farm. Read our full guide to Irish hedgerow laws to stay compliant.
Sowing Heritage Grains
Growing grain at home is more achievable than most people think. A plot of 4–5 square metres — roughly the size of a large raised bed — can produce enough grain for several loaves of bread. Our three heritage grains each have slightly different requirements:
Einkorn
Sow: October–November (winter type) or March (spring type).
Soil: Tolerates poor, thin soils well. Prefers well-drained ground.
Spacing: Broadcast at 15–20g per sq m, rake in lightly.
Harvest: July–August when ears are golden and grain is hard. Thresh, winnow, and mill fresh with a stone hand mill.
Emmer Wheat
Sow: October–November (winter type preferred in Ireland).
Soil: Moderate fertility. Handles heavier soils better than einkorn.
Spacing: Broadcast at 15–20g per sq m.
Harvest: July–August. Emmer is a hulled wheat — the grain stays enclosed in its husk after threshing. You'll need to dehull before milling.
Heritage Rye
Sow: September–October (rye establishes fast and benefits from early sowing).
Soil: Thrives in poor, acidic, sandy soils where wheat fails — ideal for much of Ireland.
Spacing: Broadcast at 12–18g per sq m.
Harvest: July. Rye is easier to thresh than wheat and produces dense, dark flour perfect for sourdough.
For the complete growing, threshing, milling, and baking guide, see our Heritage Grain Growing Guide. Our Heritage Grain Milling Kit includes a stone hand mill and all three grain varieties — everything you need from sowing to flour.
Aftercare
Mantenimiento del Primer Año
En el primer año, pueden aparecer malas hierbas anuales junto a tus flores silvestres. Si las malas hierbas son significativamente más altas que las flores silvestres, corta toda el área a unos 10 cm a mediados de verano. Esto frena las malas hierbas mientras permite que las flores silvestres se recuperen.
NO uses herbicida — también matará tus flores silvestres.
Mantenimiento a Partir del Segundo Año
Una vez establecida, una pradera de flores silvestres requiere muy poco mantenimiento:
- Corta una vez al año a finales de agosto o septiembre
- Deja los recortes secar durante 2-3 dÃas (esto permite que las semillas caigan)
- Retira todos los recortes — esto reduce la fertilidad del suelo, lo que favorece a las flores silvestres frente a las gramÃneas
- Eso es todo. Sin abonar, sin regar, sin desherbar.
Year 3+: What to Expect
By year three, your meadow should be a self-sustaining system. Perennials like knapweed, oxeye daisy, and bird's-foot trefoil will dominate, flowering reliably year after year. You may notice new species appearing that you didn't sow — wind, birds, and insects bring seed from surrounding habitat. This is a sign of a healthy, functioning meadow.
Continue the single annual cut in late August or September. The golden rule remains: always remove the cuttings. Leaving them on the ground enriches the soil, which favours grasses over wildflowers. On a farm, the cuttings make decent mulch for garden beds or paths.
How Our Plants Improve Soil
Wildflowers and cover crops aren't just beautiful — they actively build healthier soil. Here's what's happening underground when you sow our mixes.
Nitrogen Fixation
Legumes in our mixes — red clover, white clover, bird's-foot trefoil, tufted vetch — host Rhizobium bacteria in their root nodules. These bacteria capture nitrogen from the air and convert it into plant-available fertiliser. Red clover alone fixes 150–250 kg of nitrogen per hectare per year — equivalent to a heavy application of synthetic fertiliser, delivered for free.
Products: Clover Lawn Mix, Red Clover Seeds, Cover Crop, all standard wildflower mixes
Breaking Compaction
Deep-rooted species physically break through compacted soil layers, creating channels for water, air, and future roots. Heritage rye roots reach 1.5 metres deep. Phacelia's dense root system penetrates compacted layers and decomposes rapidly when dug in, leaving organic matter throughout the soil profile.
Products: Heritage Rye Seeds, Phacelia Seeds, Cover Crop
Building Organic Matter
Perennial wildflowers shed and regrow roots continuously, building stable soil carbon year on year. Cover crops add fast-decomposing biomass when dug in. Each 1% increase in organic matter allows soil to hold an additional 75,000 litres of water per hectare — critical in both drought and heavy rain.
Products: Cover Crop, Buckwheat, all meadow mixes
Weed Suppression
Heritage rye releases chemicals (allelopathy) that suppress weed seed germination around it. Buckwheat and clover smother weeds with dense canopy cover. A well-established cover crop reduces weed emergence in the following crop by 60–80%.
Products: Heritage Rye, Buckwheat, Clover Lawn Mix
For the full science behind soil improvement with wildflowers and cover crops, read our blog post: How Wildflowers Improve Soil Quality.
Modernised Fallow Planting
Bare fallow wastes a growing season, erodes soil, and kills soil biology. Modernised fallow sows pollinator-friendly cover crops on resting land — building soil, fixing nitrogen, and feeding bees while the land recovers.
Quick Decision Guide
| Situation | What to Sow | When |
|---|---|---|
| Empty bed (spring/summer) | Pollinator Cover Crop | April–August |
| Empty bed (winter) | Heritage Rye Seeds | September–October |
| Fallow field (ACRES) | Pollinator Cover Crop | April–May |
| Compacted ground | Phacelia + Red Clover | March–August |
| Weedy plot | Buckwheat (fast smother) | April–July |
| Post-harvest stubble | Pollinator Cover Crop | July–August |
How to incorporate: When you're ready for the next crop, mow or dig the cover crop into the top 15–20cm of soil. Leave 2–3 weeks for decomposition before planting. The chopped biomass feeds soil biology and releases nitrogen for your next planting.
For the full strategy including ACRES eligibility, nitrogen fixation numbers, and historical context, read our blog post: Modernised Fallow Planting: Why Resting Land Should Still Be Working.
Consejos según el Tipo de Suelo
- Suelos arcillosos: Añade gravilla o arena gruesa para mejorar el drenaje antes de sembrar
- Suelos ácidos: La mayorÃa de mezclas de flores silvestres funcionan bien; evita encalar
- Suelo de jardÃn rico: Retira los 5 cm superiores de tierra vegetal para reducir la fertilidad — las flores silvestres prosperan en suelos más pobres
- Suelos arenosos o costeros: Excelentes para flores silvestres con una preparación mÃnima
A note on fertility: This is counterintuitive, but wildflowers prefer poor soil. On fertile ground, vigorous grasses outcompete slower-growing wildflowers. If your soil is very rich (dark, crumbly, well-fed garden soil), either strip the top 5cm of topsoil before sowing or add yellow rattle to your mix — it parasitises grass roots and weakens them, giving wildflowers space to establish. Our standard mixes already include species suited to moderate Irish soils.
Common Mistakes
We see these regularly. Avoid them and your results will be dramatically better:
Burying the seed
The number one mistake. Most wildflower seeds need light to germinate. Press them into the surface — never cover with soil or compost. If you can't see the seeds on the surface after sowing, they're too deep.
Sowing into uncleared grass
Scattering seed onto an existing lawn or meadow without preparation is a waste of seed. Established grass will smother the seedlings. You must expose bare soil — at minimum, scalp and scarify. The clover lawn mix is the exception, as clover is vigorous enough to compete.
Feeding the soil
Do not add compost, fertiliser, or manure to a wildflower area. It helps grasses, not flowers. Wildflowers evolved on poor ground. The poorer the soil, the better they compete.
Giving up after year one
Year one often looks weedy and disappointing. Annual weeds germinate fast and tower over slow-growing perennials. This is normal. The perennials are establishing root systems underground. By year two, the meadow transforms. Patience is the most important tool you have.
Mowing too often
A wildflower meadow is not a lawn. Once established, cut once a year in late August or September. More frequent mowing removes flowers before they set seed and starves pollinators of forage.
Using herbicide nearby
Herbicide drift from adjacent spraying can devastate a wildflower area. Maintain an unsprayed buffer of at least 2 metres. If you're in ACRES, this is already a scheme requirement for field margins.
Month-by-Month Calendar
What to do and what to expect, season by season. This applies to established meadows (year 2+). Year one is mostly about patience and weed management.
January – February
Do: Nothing. Leave the meadow alone. Dead stems provide overwintering shelter for insects.
Expect: First green shoots of primrose and ground ivy. Early bumblebee queens may emerge on mild days.
March – April
Do: Spring sowing window opens (March–May). Plan new areas. Order seed.
Expect: Dandelions, primrose, and cowslips provide early nectar. Last chance to sow heritage grains (spring varieties).
May – June
Do: Enjoy the show. Resist the urge to mow. Mark your meadow so others know it's intentional, not neglected.
Expect: Oxeye daisy, red clover, bird's-foot trefoil, and buttercups in full flower. Peak pollinator activity begins.
July – August
Do: Year 1 only: if weeds are very tall, cut to 10cm in mid-July and leave wildflowers to recover. Year 2+: leave until late August.
Expect: Knapweed, field scabious, and wild marjoram at their peak. Butterflies everywhere. Harvest heritage grains.
September – October
Do: Cut the meadow in late August or early September. Leave cuttings 2–3 days, then remove. This is also the prime autumn sowing window for new areas.
Expect: Devil's-bit scabious provides late forage. Ivy flowers on the hedgerows. Sow new wildflower areas and heritage grains now.
November – December
Do: Leave dead stems standing — they shelter overwintering insects and look beautiful with frost. Tidy paths, not the meadow itself.
Expect: Seeds dropping and settling into the soil. The meadow is recharging for next year.
ACRES & Agri-Environment Scheme Compliance
If you're sowing wildflowers as part of an ACRES plan or other agri-environment scheme, there are specific requirements to be aware of. Getting these right protects your payments and ensures your work delivers real biodiversity outcomes.
- Seed provenance: Many ACRES actions require certified native provenance seed. Our mixes use verified Irish-provenance native seed from DAFM-registered producers. We can provide documentation of provenance on request.
- Species composition: ACRES may specify which species are required or prohibited. Check your plan with your advisor before ordering. We publish full species lists for every mix and can advise on suitability.
- Sowing rates: Scheme rates typically specify 3–5g of wildflower seed per square metre. Our product coverage figures are calibrated to these rates.
- Unsprayed margins: Field margins under ACRES must be left unsprayed and uncultivated. Sow wildflowers into these margins to maximise their biodiversity value — see Hedgerow Margins above.
- Record keeping: Keep your seed purchase receipt, species list, and sowing date. These may be needed for inspections. We include species lists with every order.
- Hedgerow cutting: Remember the Wildlife Act closed season: no hedgerow cutting from 1 March to 31 August. This is a legal requirement and a cross-compliance condition. See our full guide to Irish hedgerow laws.
For more detail on ACRES payments and how wildflower sowing fits into your plan, read our blog post on the ACRES scheme.