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Pacific Coast Iris
 
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Collect seed

Compost

Heat

Iris

Planting out

Pricking out

Seed sowing

Soil pH

Pacific Coast irises as seen here are beardless clump-forming plants that grow to 200-600mm (8”-24”) in height.

The foliage is usually ever­green, the rhizomes are generally long and slender with a sparse root system.

The flowers have three outer petals (falls) and three inner petals (standards) with two to four flowers per stem.

Plant culture is similar to other iris;

Week 2; Raise the temperature to around 7°-10° C (45°-50°F)

Circa Week 12; Once they have three or four leaves, transplant them into 70mm (3”) pots of lime-free compost.

Week 22; Plant out plants sown the previous year into their flowering positions.

They require a sunny or dappled shade position and lime free soil.

They may produce their first flowers the following May, although early summer of the third year is more usual.

Week 30-35 >> After theflowers have died back, collect ripe seed and divide overcrowded clumps .

Otherwise cut the plants down when the leaves turn yellow.

Week 40; Plants raised from seed will not be identical to the parent plant.

Sow seed 12mm (½”) apart in pots/trays of lime free seed compost and place in a cold frame to stratify - chilling is needed to break the seeds dormancy.

 

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