Arisaema candidissimum (also called white-spathed jack in the pulpit)
Tuberous perennial. Low growing but architectural, grown for the pink and white striped spathes which are borne in summer. Good to provide interest in a cool, shady, moisture-retentive spot. The 'flowers' are not long-lasting but are quite a conversation piece when they are out.
Flowers and leaves in summer.
Habit - upright. H&S: up to 50cm
Stem - leaf stems are round, smooth and mid-green. Flower stems are round, smooth and dark pink-brown.
Leaves - palmately lobed, leathery texture, mid-green. The leaves grow larger after the flower stem has faded.
Flowers - the flowers are tiny and are clustered along the cigar-like spadix which is enclosed by the hooded spathes. They appear in mid-summer.
Fruit/seed - flowers are followed by a spike of red berries.
Partial to full shade.
Moisture retentive, but not wet.
May need protection in colder winters or in cold areas. My Arisaema is in a pot facing north-east and, whilst it's in a fairly sheltered position, it has, so far, come to no harm without winter protection.
Little needed - do not allow tubers to dry out and protect from slugs, snails and vine weevils. I've found that copper tape around the pot has kept slugs and snails away.
Seed can be sown in containers, in a cold frame, in spring or autumn, or remove and plant up tuber off-sets. These look like large flat potatoes.
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