5 out of 5 based on 1 customer rating
(1 customer review)


  • Hardy annual
  • Pale mauve-blue
  • Attracts bees
  • Grows to 23cm
  • Can be used as cover crop

Product Description

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Phacelia tanacetifolia. Pale, mauve-blue, fragrant flowers unfold like ferns at the top of long leafy stems and attracts bees from miles around. The delicate, lacy foliage bears a resemblance to yarrow. It fits in the vegetable garden as a cover crop or in a garden bed for quirky purple flowers. Direct sow Phacelia seeds at three week intervals from April to June and expect a staggered, much extended bloom period. Phacelia grows to 23cm (9″) in full sun or part shade. Plant Phacelia any place where pollination has not been sufficient, as it is such a lure for pollinators. It’s a good companion plant for any of the Cucurbits – cucumbers, melons, and squashes.

If planting as a cover crop, use 1.8 to 2.2kg per acre. Denser planting will control weeds.


Mark talks about Phacelia on YouTube

How to Grow Phacelia

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This annual is one of the best of all pollinator attractors of all. Bees simply love the ample, long-lasting, purple flowers. It is often called Phacelia, Purple Tansy, Scorpion flower, or heliotrope. It is easy to plant and grow Phacelia seeds.

Phacelia tanacetifolia
Family: Boraginaceae


Season & Zone
Exposure: Full sun
Zone: 3-10

No need to start Phacelia indoors. Direct sow every couple of weeks from last frost (end of March on the coast) to mid-June. This will produce a full summer of flowers. Seeds will germinate in 12-30 days.

Sow 5mm (¼”) deep, and space or thin to 10-20cm (4-8″) apart.

Ordinary, well-drained garden soil is what makes Phacelia thrive. It will die back during a long, hot stretch of weather, so it’s ideal for the cooler seasons of spring and fall. Plants may self sow.

Note: Some people have a bad skin reaction to the plants, so wear gloves when pulling out finished plants.

1 review for Phacelia

  1. 5 out of 5


    I bought some phacelia seed years ago from westcoast as a cover crop. I didn’t grow it until last year and the seed still sprouted. It is a fragile plant at the start but gets more sturdy and bushy and tends to fall over with time. It flowers for a very long time and the bees just love it. I have successfully transplanted seedlings as it also self seeds and saved my own seeds. The flowers are lovely and delicate and also dry well. All in all a wonderful plant for the urban agriculturalist and bee supporter. I highly recommend it and thank west coast for having introduced me to phacelia.

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