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Protocol Information

David J. Horvath
Nursery Manager
Illinois Department of Natural Resources - Mason State Nursery
17855 N. CR 2400E
Topeka, Illinois 61567
309-535-2185
309-535-3286
dhorvath@dnrmail.state.il.us


Family Scientific Name: Commelinaceae
Family Common Name: Spiderwort family
Scientific Name: Tradescantia ohiensis Raf.
Common Synonym: Tradescantia ohiensis Raf. foliosa
Common Name: Ohio Spiderwort
Species Code: TRAOHI
Ecotype: Central Illinois, 650 feet msl elevation
General Distribution: T. ohioensis is found throughout the eastern united states west to the Great Plains; from eastern Nebraska to Texas.
Propagation Goal: Plants
Propagation Method: Vegetative
Product Type: Container (plug)
Stock Type: 1+0 container plugs
Target Specifications: Height: n/a, herbaceous perennial.
Caliper: n/a, herbaceous perennial.
Root System: firm root plug.
Propagule Collection: In May and June, cuttings are taken from mature plants with white flowers.
Pre-Planting Treatments: Keep the cuttings misted and out of the sun so they do not dry out.
Growing Area Preparation/
Annual Practices for Perennial Crops:

Propagation Environment: Fully controlled greenhouse.
Propagation Method: Succulent cuttings.
A unique form of Spiderwort appears with a white flower. This can only be kept through propagation of cuttings. It does not remain true to seed. One plant can be cut back to a few inches and still reflush and bloom the same season, while it may be used for cutting material.
Container Type and Volume: Multipot #3, #4, or #6 are used. Cell volumes are 6, 9, and 6 cubic inches, respectively. Cuttings may be stuck in a bottomless container. These containers facilitate air, root pruning. Cuttings may be stuck in a bark-mulch, peat moss mix with an added slow release fertilizer mixed in.
Total Time to Harvest: 7-11 months, depending on weather and plant/root development.
Before sticking the cuttings, make a fresh diagonal cut one half inch below the node and dip the basal portion of the cutting in Hormodin #3. Make a pencil type insertion into the media before sticking to prevent the powder form rubbing off. Remember to keep the materials as sterile as possible in the cutting process.
Hardening Phase: The first greenhouse crop will be moved to a hoop house in late January to February.
To acclimate the plants, the irrigation rate is reduced to 50 ppm before moving and greenhouse temperatures are decreased to 55 - 60 degrees day. The second and third crops are moved directly to the shadehouse in April and May.
Again, greenhouse controls and fertilization rates are adjusted in preparation for the move. Plants that reach 8-10 inches in the shadehouse will require pruning.
Length of Hardening Phase: 1 month
Harvesting, Storage and Shipping: Harvest Date: Flats may be unplugged in October or November as long as most of the tops have died down.
Storage Conditions: Plugs that are not shipped during this fall's planting season may be stored for spring planting in cold rooms above freezing, preferably 40-50 degrees. Try to remove most of the dead foliage as you can before bagging the root plugs for storage. Store them on plastic bags to ensure the roots do not dry out.
Storage Duration: Approximately 4 to 6 months. Plugs may be shipped at any time as long as the receiver has cold storage.
Length of Storage: 4 to 6 months
Outplanting performance on typical sites: Outplanting Site: Illinois prairie sites to include State Parks, highway roadsides, and limited private lands. Prefers mesic prairies.
Outplanting Date: September to November

Citation:
Flood, Roberta Mountz; Blessman, Gary.; Horvath, David J. 2001. Propagation protocol for vegetative production of container Tradescantia ohiensis Raf. plants (1+0 container plugs); Illinois Department of Natural Resources - Mason State Nursery, Topeka, Illinois. In: Native Plant Network. URL: http://www.nativeplantnetwork.org (accessed 29 July 2014). Moscow (ID): University of Idaho, College of Natural Resources, Forest Research Nursery.
 

Protocol Information

David J. Horvath
Nursery Manager
Illinois Department of Natural Resources - Mason State Nursery
17855 N. CR 2400E
Topeka, Illinois 61567
309-535-2185
309-535-3286
dhorvath@dnrmail.state.il.us


Family Scientific Name: Commelinaceae
Family Common Name: Spiderwort family
Scientific Name: Tradescantia ohiensis Raf.
Common Synonym: Tradescantia ohiensis Raf. foliosa
Common Name: Ohio Spiderwort
Species Code: TRAOHI
Ecotype: Central Illinois, 650 feet msl elevation
General Distribution: T. ohioensis is found throughout the eastern United States west to the Great Plains; from eastern Nebraska to Texas.
Propagation Goal: Plants
Propagation Method: Seed
Product Type: Container (plug)
Stock Type: 1+0 container plugs
Target Specifications: Height:N/A; herbaceous perennial.
Caliper:N/A; herbaceous perennial.
Root System: Firm Plugs for greenhouse grown plants.
Propagule Collection: Seed is collected by hand from nursery stock. The plant flowers from approx. May 10 - June 12. Seed is harvested June 22.
Propagule Processing: After drying, seed is cleaned by running it through the Dybvig, dry, then over the Clipper with a top screen of 7 and a bottom screen of 1/21. Set the clipper fan on low. This seed can be cleaned to 90% purity with 10,000 seeds per ounce. 8 ounces of seed is saved to sow one bench in either 64 flats of the Multipot #6, or 24 flats of the Multipot #3 or #4.
Pre-Planting Treatments: Seed is damp stratified by mixing it with equal amounts of vermiculite and lightly dampening in a plastic bag or container. Store this seed for 3-4 months in a cold room of 34-36 degrees F.
Growing Area Preparation/
Annual Practices for Perennial Crops:

Propagation Environment: Fully Controlled greenhouse.
Total Time to Harvest: 7-11 months, depending on weather and plant/root development.
Growing Media: Sterile, Pro-Mix PGX. Add vermiculite and perlite at a 10:1 ratio. Mix in 5 ounces of Osmocote, slow release fertilizer, 17-6-10, per cubic foot of soil. Ensure flats are tapped down to prevent settling.
Sowing Date: Three crops are started in the greenhouse with the first in late December and the last no later than the end of March.
Sowing/Planting Technique: Sow the seeds by hand by broadcasting. Try to sprinkle 3-5 seeds per cell. Seed purity rates vary from year to year. Thus, it is easier to thin than to transplant. Cover the seeds to one times their depth with the same growing media. Use a dibble board or roller to gently press seed and cover soil in the cell.
Establishment Phase: Set the greenhouse temperatures to be 70-80 degrees during the day, and 65-75 degrees at night.
75% germination is reached in about two to three weeks.
Plants must be watered by hand during germination. Set the hose on gentle shower to prevent seeds from splashing out.
Active Growth Phase: Once germination is successful, the greenhouse temperature may be turned down gradually depending on outside temperatures.
Plants are irrigated in the morning by soaking for 20 to 30 minutes. This allows the foliage to dry out during the day. Once true leaves appear, not cotyledons, the plants may be fertilized. Start with 50 ppm of Rapid Grow or Peter's Liquid Fertilizer once a week. This rate is increased to 200 ppm gradually, and, again, decreased to 50 ppm before moving the plants outside to the shadehouse. It is important to rinse fertilizer residue off the foliage by running the irrigation for 30 seconds. Plants should be thinned to 2 plants per cell. This should be accomplished before the roots are too extensive.
When foliage reaches 8 to 10 inches, the plants need to be pruned back to 3 or 4 inches. This is accomplished by turning the flats on their sides and cutting with scissors or sheers. Make sure the clippings are all removed from the flats to prevent disease spread.
Hardening Phase: The first greenhouse crop will be moved to a hoop house in late January to February.
To acclimate the plants, the irrigation rate is reduced to 50 ppm before moving and greenhouse temperatures are decreased to 55-60 degrees day. The second and third crops are moved directly to the shadehouse in April and May.
Again, greenhouse controls and fertilization rates are adjusted in preparation for the move. Plants that reach 8-10 inches in the shadehouse will require pruning also.
Harvest Date: Flats may be unplugged in October or November as long as most of the tops have died down.
Length of Hardening Phase: 1 month
Harvesting, Storage and Shipping: Storage Conditions: Plugs that are not shipped during this fall's planting season may be stored for spring planting in cold rooms above freezing, preferably 40-50 degrees. Try to remove most of the dead foliage as you can before bagging the root plugs for storage. Store them on plastic bags to ensure the roots do not dry out.
Storage Duration: Approximately 4 to 6 months. Plugs may be shipped at any time as long as the receiver has cold storage.
Length of Storage: 4 to 6 months
Outplanting performance on typical sites: Outplanting Site: Illinois prairie sites to include State Parks, highway roadsides, and limited private lands. Prefers mesic prairies.
Outplanting Date: September to November

Citation:
Horvath, David J.; Flood, Roberta Mountz.; Blessman, Gary. 2001. Propagation protocol for production of container Tradescantia ohiensis Raf. plants (1+0 container plugs); Illinois Department of Natural Resources - Mason State Nursery, Topeka, Illinois. In: Native Plant Network. URL: http://www.nativeplantnetwork.org (accessed 29 July 2014). Moscow (ID): University of Idaho, College of Natural Resources, Forest Research Nursery.