Ordering will resume for Fedco Trees when we release our 2020 catalog, in early October 2019.
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Arisaema triphyllum In midspring, one or two compound leaves appear close to the ground, each with three leaflets framing an upright stem topped by a striped tannish-purple 3" long cuplike spathe (the pulpit) that contains and arches over the erect greenish-yellow spadix (Jack). It’s a great pleasure, one I still remember, for the two- or three-year-old set to lift the flap and see Jack.
This magical Northeastern native prefers dappled shade and moist rich woodland soil. Plant 10–18" apart. Grows 12–24" tall. Nursery propagated. Z3. (bare-root crowns)
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Herbaceous Perennial Plants
When you receive your order, open the bags and check the stock. Roots and crowns should be firm and pliable. If they are slightly dry, add a little water or, if they are going to be potted up soon, wet the roots. Generally, a little surface mold is harmless and will not affect the plant’s future performance. If you cannot pot them up immediately, store them in a cool (35–40°) location for a short time.
Do not plant bare-root perennial plant crowns directly outdoors.
Pot up the rootstock using well-drained potting mix in a deep 6" pot or a 1-gallon container. Avoid coiling the roots in under-sized containers.
Grow newly potted perennials for a few weeks in a protected location in indirect light at 50–60°. Wet and/or cold conditions for an extended period may cause rotting.
Transplant outside once they show some top growth and the danger of frost has passed.
For more info:
About planting bare-root perennials.