PERENNIALS | VEGETATIVE PROPAGATION
Achillea millefolium Yarrow DESERT EVE ™
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
5–6 weeks
70–72 °F (21–22 °C) for the first three weeks.
Begin fertilization at 75 ppm N when roots become visible. Rates can be increased up to 100 ppm N after roots become well developed.
First Year Flowering
Arenaria montana Sandwort SUMMER / WINTER
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
5–6 weeks
68–70 °F (20–21 °C) for the first three weeks. After roots are well developed, temperatures can be lowered to 64–68 °F (18–20 °C) to hold and tone the cuttings.
Begin fertilization at 80 ppm N when roots become visible. Rates can be increased up to 150 ppm N after roots become well developed.
Pinching is recommended in prop 7–10 days prior to transplant leaving 4–6 nodes.
First Year Flowering
Aubrieta hybrida Aubrieta AXCENT ™ / GLACIER ™
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
5–6 weeks
70–72 °F (21–22 °C) for the first three weeks.
Begin fertilization at 50 ppm N when roots become visible. Rates can be increased up to 75 ppm N after roots become well developed.
Cold Required
The use of tents during propagation to avoid over misting has also been found to be beneficial. If needed, a spray of B-Nine ® WSG at 500–1,500 ppm can be applied.
Campanula interspecific Bellflower CARIBOO ™
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
5–6 weeks
68–70 °F (20–21 °C) for the first three weeks. After roots are well developed, temperatures can be lowered to 64–68 °F (18–20 °C) to hold and tone the cuttings.
Begin fertilization at 80 ppm N when roots become visible. Rates can be increased up to 150 ppm N after roots become well developed.
Lighting should be under short days to promote vegetative growth.
First Year Flowering
Coreopsis grandiflora Tickseed CASTELLO ™
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
4–5 weeks
70–72 °F (21–22 °C) for the first three weeks
Begin fertilization at 100 ppm N when roots become visible. Rates can be increased up to 200 ppm N after roots become well developed.
First Year Flowering
Erysimum linifolium Wallflower ERYSISTIBLE ™ / SUPER BOWL ™
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
6–7 weeks
70–72 °F (21–22 °C) for the first three weeks
Begin fertilization at 50 ppm N when roots become visible. Rates can be increased up to 100 ppm N after roots become well developed.
1 pinch is recommended, 7–10 days prior to transplant leaving 4–6 nodes.
First Year Flowering
Gaillardia aristata Blanket Flower BARBICAN ™ / SUNRITA ™
VERNALIZATION REQUIREMENT
PROP TIME
BOTTOM HEAT
FERTILIZER
YOUNG PLANT COMMENTS
4–5 weeks
72–75 °F (22–24 °C) for the first three weeks
Begin fertilization at 80 ppm N when roots become visible. Rates can be increased up to 150 ppm N after roots become well developed.
B-Nine ® WSG spray at 2,500–5,000 ppm can be used if needed.
First Year Flowering
GROWER SUCCESS GUIDE 2026–2028
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