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The Forest Service National Center for Reforestation, Nurseries, and Genetic Resources (RNGR) is a leading source of technical information for nurseries and land managers regarding production and planting of trees and other native plants for reforestation, restoration, and conservation.

 
NPN Protocol Details Image

Calystegia (subacaulis)

Betty Young
Nurseries Sr Manager
Bldg 201, Fort Mason
San Francisco, California 94123
415-331-6917
415-331-7521 (fax)
byoung@ggnpa.org

Family Scientific Name: Convolvulaceae
Family Common Name: Morning Glory Family
Scientific Name: Calystegia subacaulis Hook & Arn.
Common Name: Hillside False bindweed
Species Code: CALSUB
Ecotype: Marin County, California
General Distribution: C. subacaulis is found in northern coastal scrub and oak woodlands, from Sonoma and Napa counties to San Luis Obispoc county, California.
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Stock Type: Container Seedling
Time To Grow: 0
Target Specifications: Height: N/A<br> Caliper: N/A<br> Root System: Firm plug in container.
Propagule Collection: Seeds are collected between July 1st and September 1st.
Fruits grow close to the ground and are enclosed in papery bracts which become brown and dry at maturity.
Seeds are hard,dull black pea-like seeds, about 3 to 5 mm in diameter at maturity.
Propagule Processing: Seed Cleaning:
Storage Conditions: Seeds are kept dry and stored in a refrigerator.
Pre-Planting Treatments: The seed coat must be scarified prior to sowing so the seed can quickly imbibe water. Tumble in a rock tumbler with rocks for 24 hours, then check. Continue until the seed coat is obviously and deeply scratched.
For small seed lots, use sandpaper to scratch the seed coat until the endosperm is visible (this will be pale compared to the seed coat).
Growing Area Preparation/
Annual Practices for Perennial Crops:
Fully Controlled Greenhouse.
Sowing Method: Direct Seeding.
Seeds germinate 15 days after sowing.
Seedlings are sown in individual containers 2"x7" tubes (Deepot 16)containing standard potting mix of peat moss, fir bark, perlite, and sand.

Seeds are planted 2 times the diameter to depth and are surface sown.
Containers are watered in with an automatic irrigation system.
Seeds are sown on July 1st.
% Germination:50%
Establishment Phase: Seedlings are transplanted 15 days after germination to individual containers 2"x7" tubes (Deepot 16)containing standard potting mix of peat moss, fir bark, perlite, and sand.
Survival rate after Transplanting: 90%
Length of Establishment Phase: 1 month
Active Growth Phase: After seedlings are well established, they are moved to the shadehouse (30% shade fabric) for continued growth.
Prune back 2 months after transplanting.
Fertilize with 10 grains of Nutricote (NPK 13-13-13) 2 months after transplanting.

Citation:

Young, Betty. 2001. Propagation protocol for production of Container (plug) Calystegia subacaulis Hook & Arn. plants Container Seedling; San Francisco, California. In: Native Plant Network. URL: https://NativePlantNetwork.org (accessed 2024/07/01). US Department of Agriculture, Forest Service, National Center for Reforestation, Nurseries, and Genetic Resources.