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Discover our all-time favorite organic seeds here — trusted by gardeners worldwide!
Shop nowOrganic Phacelia Seeds offer an easy route to biodiversity and soil vitality, bringing a delicate lacy phacelia canopy and waves of purple tansy flower to beds and borders. Known botanically as Phacelia tanacetifolia, this nectar-rich annual functions as a bee forage plant and beneficial insect attractor, supporting pollinating insects throughout an extended flowering window. Sometimes listed as Lacy Phacelia Seeds or Purple Tansy Seeds, it complements mixed plantings as a light-textured, airy filler while building habitat around vegetables and ornamentals. The frilled blooms and ferny foliage contribute a refined flowering display without demanding care, making these Bee-friendly Phacelia Seeds a resilient choice for ecological plantings.
As an organic cover crop, Organic Phacelia Seeds establish quickly, creating a soft groundcover for fallow beds and pathways. Best in full sun yet tolerant of light shade, sow after last frost; in mild climates autumn sowing may be possible. Once established, stands show a degree of drought tolerance and provide quick flowering, drawing hoverflies and other allies. Adaptable growth and a tidy habit suit borders, vegetable rows, and also larger containers, where the nectar supply remains close to seating areas.
Beyond a beautiful flowering display, Organic Phacelia Seeds double as a soil improvement cover crop. Dense, feathery foliage shades soil for weed suppression, while fibrous roots scavenge available nitrogen and enhance structure as green manure for soil. For beds transitioning between crops, sowing Organic Phacelia Seeds offers a cool-season cover crop that bridges gaps, then finish the cycle by mowing before seed set to return biomass. The long, lavender-blue spires are also appreciated as a light cut flower filler when harvested in bud, adding airy texture alongside other stems while continuing to support phacelia for pollinators in surrounding plantings.
This navigator sits within the Organic Seeds range and points to closely related collections. You’ll find annuals and herbs suited to pollinator-friendly plantings, borders, and cut-flower displays. For most, sow after the last frost; in mild climates, autumn sowing may also be feasible. The selections offer companions and alternatives with similar growing habits and garden uses.
Grow lacy phacelia as a nectar-rich annual and versatile organic cover crop. Plant in full sun, tolerating light shade, in well-drained, moderately fertile soil. Sow after the last frost; in mild climates autumn sowing may be possible, and keep the seedbed evenly moist for reliable phacelia germination. It establishes quickly, aiding weed suppression and serving as green manure for soil improvement; the purple tansy flowers attract bees, hoverflies and other beneficial insects. Once established it is relatively drought-tolerant; water during prolonged dry spells to sustain flowering. Plants typically reach 45–90 cm. For soil-building, use as a cool-season cover crop and incorporate before seed set, or enjoy its airy form as a cut flower filler.
Prepare a fine, weed-free seedbed and scatter seeds evenly, then cover very lightly by raking or adding a thin layer of soil; phacelia germination benefits from shallow coverage. Keep the surface evenly moist until seedlings appear, typically within a couple of weeks in suitable temperatures. Choose full sun where possible, though light shade is tolerated. Thin or transplant gently once true leaves form so each plant has room to develop. For quick flowering annual displays or a green manure for soil, sow in batches to stagger growth and extend bloom or groundcover through the season.
Sow after the last frost once soil is workable; in mild climates, autumn sowing may also be possible for cool-season cover. Broadcast seed over prepared soil and rake in lightly for good seed-to-soil contact. Dense sowings help with weed suppression. For soil improvement cover crop uses, allow plants to build leafy biomass, then terminate before they set seed—often at bud stage or early flowering—by mowing or chopping. The residue may be left as a surface mulch or lightly incorporated, depending on your approach and timing for the next crop.
Yes. Lacy phacelia (purple tansy flower) is widely grown as a nectar-rich annual that supports a variety of pollinators, including bees, hoverflies, and other beneficial insects. Its curled, many-flowered heads open progressively, offering forage over an extended period. Planting in full sun and staggering sowings can help maintain a continuous supply of bloom. When used near fruiting crops, it may enhance pollinator activity in the area. Avoid pesticides on or near flowering stands to protect visiting insects and to maximize the ecological value of this bee forage plant.
Phacelia thrives in full sun but tolerates light shade, performing best in well-drained, moderately fertile soil. It adapts to most garden soils provided drainage is adequate; waterlogged conditions tend to reduce vigor. Keep moisture consistent during establishment, then water as needed—plants can be relatively drought-tolerant once established. Excessive nitrogen may produce lush foliage at the expense of flowers, so moderate fertility is usually sufficient. In borders, it can serve as a quick flowering annual or cut-flower filler; in fallow beds, it works as an organic cover crop for short-term groundcover.
Plants typically reach about 45–90 cm (18–36 in) in height, depending on soil, moisture, and sowing density. For ornamental plantings, thinning to roughly 20–30 cm between plants often gives good airflow and sturdy stems. Broadcast cover-crop stands are usually kept denser to achieve rapid canopy closure and better weed suppression. Taller growth may lean in very rich soils or exposed sites; shelter from strong winds can help. Regardless of spacing, aim for even light and avoid overcrowding where disease pressure is a concern, especially in damp or shaded microclimates.
It can, provided you use a free-draining potting mix and a container deep enough for the root system—pots around 20–30 cm deep are commonly suitable. Position in full sun and water when the top layer of compost begins to dry; containers warm and dry more quickly than beds, so check moisture regularly. Avoid overly rich feeds that can reduce flowering. Sow thinly, cover lightly, and thin seedlings so each plant has space to branch and bloom. Container-grown plants still attract pollinators, making them useful on patios or balconies.
Products are sourced from vetted growers and distributors, with batches tracked for provenance. Supplies meet applicable seed, plant health, and biosecurity requirements and undergo routine checks for purity and germination within acceptable tolerances. Packaging and labelling align with regulatory standards. Guidance provided is general and may vary with microclimate, soil, hardiness zone, and hemisphere; local conditions can affect outcomes. Product pages carry specific instructions.
Organic Phacelia Seeds offer a fast-growing, nectar-rich cover crop that supports beneficial insects while improving soil tilth. Phacelia tanacetifolia forms fine roots that loosen compacted ground, enhance drainage, and help cycle nutrients, making it useful between vegetable rotations or as a living mulch. Sow thinly in prepared, weed-free beds after the last frost when soil is workable; in milder conditions, late-summer to autumn sowings are possible for winter soil coverage where conditions remain open. Germination is reliable in cool to moderate temperatures, and plants flower in as little as 6–10 weeks, providing extended forage for bees and hoverflies. For green manure use, chop and incorporate before seed set to prevent volunteers and to maximise biomass; allow 2–3 weeks for residues to break down before replanting. Drought-tolerant once established, phacelia also shades the soil surface to suppress weeds. More certified options are listed under Organic Seeds.
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