Thicket creeper (Parthenocissus inserta) Seeds

$ 6.00

Out of Stock

Closely related to Virginia creeper, this lovely vine clings with twining tendrils rather than suction cups. Highly valued by wildlife, including bees when in bloom and birds for its fall fruits. Shiny green leaves turn maroon in autumn. Excellent in tough urban situations where a chain link fence or unsightly wall needs to be covered. Can also be planted as a groundcover on steep slopes. In a garden, cut back vines in early spring to keep it from spreading.

Native to Maine: Yes

Growing conditions: Sun to shade in moist to dry soil

Grows up to: 20’

Blooms: In summer

Natural habitat: Forests, rocky slopes, freshwater shorelines, and disturbed roadsides

Seeds per packet: 20 (moist-stratified)

Germination Code(s): B and E
Sow these seeds immediately upon receipt, outdoors in pots from November through February. This species is challenging to grow, and a great species for more experienced seed-sowers.

Each seed package carries a specific germination code along with the plant description. These codes indicate specific sowing instructions.

  • A Seeds can be sown outdoors in fall or early spring.
  • B Seeds need a winter or cold period to germinate. Sow outdoors in fall or winter.
  • C Seeds need light to germinate; sow on soil surface and leave uncovered.
  • D Seeds need alternating cycles of warm-to-cold-to-warm to germinate. They can be sown either outdoors in spring or summer and will germinate the following year or in a flat in a warm place for 3 months, then moved to a refrigerator for 2 months, then moved outside in the early summer warmth.
  • E Seeds can not be allowed to dry out. Sow immediately.
  • F Seeds take two years to germinate. Sow outside in the fall or winter and look for germination in the second spring. A shady location prevents the flats from rapid drying and reduces weeding
  • G Large seeds should be soaked overnight in water.
  • FERN: Sow spores in a warm bright location in a sealed container and keep moist. Directions enclosed with package. Challenging.

If you have specific questions about seeds and germination guidelines please contact us at

All seeds can be sown and placed outdoors in fall or winter bypassing the need for an artificial indoor cold stratification (refrigerator) required for some species when planted in spring. This is the simplest method. See How to Grow Natives From Seed for detailed instructions.