Oak Summit Nursery
Winterberry Seeds
Winterberry Seeds
Pack contains: 150+ seeds
Winterberry (Ilex verticillata) is a deciduous holly native to Canada and the United States. Bright red fruit remains visible on bare branches after the leaves fall and often persists into winter.
Male and female flowers occur on separate plants, so a male plant is needed nearby for female plants to set fruit.
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Starting this seed
- Warm2 monthsWarm stratification
- Cold2 monthsCold stratification
- SowAfter the cold stage4 months from the start
- Seed source
- United States
- Hardiness
- Zone 3
- Mature size
- 3 to 6 ft tall
How to stratify seed
Warm stage first. Keep the same bag at room temperature for the warm period shown, then move it to the fridge.
In the fridge. Put the seed in a bag with a damp medium such as peat moss, vermiculite, sand or coco coir. The medium is only there to hold moisture. Keep the bag in the fridge, above freezing, for the cold period shown, then sow.
Or outside. Sow the seed outdoors in the fall and let winter do the cold period.
The plant these seeds grow into
Range & hardinessZone 3 · Canadian maps for this plant
Green: provinces with native records
NB · NL · NS · ON · PE · QC
Zone 3 and warmer
Province records show native distribution, not every place the species grows. The hardiness map shows minimum winter hardiness; soil, moisture and summer warmth also matter.
About these maps
Climate: Natural Resources Canada, 1991–2020. Provincial distribution: VASCAN via retained botanical research. Province outlines: Natural Earth, public domain.
Open Government Licence – Canada
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