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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

Aureolaria (grandiflora)

Cathy Thomas
Propagator
Chicago Botanic Garden - Propagation
1000 Lake Cook Rd.
Glencoe, Illinois 60022
847-835-8240
847-835-1635 (fax)
cthomas@chicagobotanic.org
http://chicagobotanic.org
Family Scientific Name: Scrophulariaceae
Family Common Name: Figwort family
Scientific Name: Aureolaria grandiflora (Benth.) Pennell pulchra Pennell
Common Synonym: Gerardia grandiflora Benth. pulchra
Common Name: largeflowered yellow false foxglove
Species Code: AUGRP
Ecotype: oak woodland, McDonald Wood, Chicago Botanic Garden, Glencoe, IL
General Distribution: IL, IN, MN, MO, WI
Propagation Goal: plants
Propagation Method: seed
ProductType: Container (plug)
Stock Type: 2 1/2
Time To Grow: 32 Weeks
Target Specifications: firmly rooted in a 2 1/2" container
Pre-Planting Treatments: Stratification: mixed with damp sand and stored at 38F for 12 weeks in a sealed plastic bag
Growing Area Preparation/
Annual Practices for Perennial Crops:		 Growing Environment: Fully automated greenhouse.
Containers: Seeds sown into ITML brand 128 cell plug trays. Plugs transplanted into T.&O. brand SVD 2 1/2 inch containers.
Media: Seeds sown into Fafard Super Fine Germinating Mix. Plugs transplanted into Sunshine SB300 Universal bark mix.
Establishment Phase: Sow date was mid February. Seeds were hand sown 2 to 3 seeds per cell to compensate for possible lower germination rates. Seeds were covered with a thin layer of coarse vermiculite. Flats were watered in with mist and placed in a shaded greenhouse under an automated mist system set at 3 seconds of mist every 30 minutes. Air temperature was set at 65 F and bottom heat was run at 70 F. Seedlings were moved to a full sun greenhouse after germination. Temperatures were set at 68 F days and 64 F nights. Day length was extended to 12 hours using HID lights. Seedlings were hand watered when dry and fertilized weekly with 20-2-20 fertilizer at 200 ppm. Seedlings were thinned to one per cell.
Length of Establishment Phase: 12 weeks from sowing until plugs were ready to transplant.
Active Growth Phase: Plugs were transplanted when firmly rooted. Plants were grown in a full sun greenhouse where temperatures were set at 65 F days and 61 F nights. Day length was extended to 12 hours using HID lights. Plants were hand watered when dry and fertilized with 20-10-20 fertilizer at 237 ppm weekly.
Length of Active Growth Phase: 6 weeks
Hardening Phase: Plants were moved outdoors to a cold frame in early June.
Length of Hardening Phase: 2 weeks
References: USDA, NRCS. 2007. The PLANTS Database(http:/plants.usda.gov, 11 December 2007) National Plant Data Center, Baton Rouge, LA 70874-4490 USA.

Citation:

Thomas, Catherine Suzanne. 2007. Propagation protocol for production of Container (plug) Aureolaria grandiflora (Benth.) Pennell plants 2 1/2; Chicago Botanic Garden - Propagation Glencoe, Illinois. 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.