Vitex agnus-castus (Chaste Tree) [15 Seeds]


Germination Information: I recommend these seeds for experienced seed-starters only, because they may require some patience and experimentation. The easiest approach is to sow the seeds about 1/8″ deep in fall to early winter, setting them outdoors in a spot protected from mice so they can get a chilling period and then germinate when conditions are right in spring.

If you sow after January, set the pot in a plastic bag in your refrigerator for a month or two before moving it to a warm, bright place for germination. (Remove the bag if the pot will be exposed to any direct sun.)

It is also quite possible that these seeds could germinate if you start them in very warm, moist, bright conditions, without a chilling period. But if you try that and no seedlings appear within 4 to 6 weeks or so, then try the refrigerator-chilling approach above before moving them back to warmth and light.

Note that this information will not appear on the seed packet you receive.

Please read the description as well before ordering.

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Long appreciated for its herbal uses, chaste tree (Vitex agnus-castus) is pretty enough to be worth growing just for its ornamental features. In mild areas (roughly south of Zone 7), it can grow as a large shrub or small tree, reaching 10 to 15 feet tall. In Zones 5 to 7, it’s usually more of a medium-sized shrub. Winter cold can kill the stem tips partway or even all the way to the ground, but that’s okay because the plant blooms on new growth, generally reaching 4 to 6 feet by bloom time in mid- to late summer (continuing into early fall). Showy sprays of small, light purple-blue to medium purple flowers are a magnet for bees and butterflies. The palmately compound leaves are delightfully aromatic too. Full sun. Zones 5 to 10. Chaste tree may self-sow and is considered invasive in some areas, so you may want to do some further research before adding this shrub to your garden in mild climates.

Seeds harvested in 2020 are sold out. I expect to collect more in late October or early November 2020. At least 15 seeds.

Please read the germination information as well before ordering.

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