The popular cultivar Snow Angel coral bells is a commercially important herbaceous perennial grown for its attractive white and green variegated foliage and bright pink flowers. To maintain the characteristic variegated foliage, ‘Snow Angel’ must be
In the United States, coral bell ( Heuchera hybrida L.) production increased by 167% ($14.4 million USD) from 1997 to 2014 ( USDA, 1998 , 2015 ). The increasing consumer demand for this herbaceous perennial is because of their colorful foliage and
) at rates as low as 300 ppm ( Latimer et al., 2011 ), while ‘Silver Lode’ coral bells responded minimally to an application of 600 ppm benzyladenine for both plant height and width ( Latimer and Freeborn, 2015 ). The wide range of possible plant
The avg wt increase of subirrigated dormant azalea tops after 75 days was 4.5g and of wax myrtle was 10.0g. The wax myrtle in a 30 cm deep perlite and peat medium produced the greatest fresh and dry wt which was twice as heavy as plants grown in a sand and bark medium. The peat, sand and soil and the peat and sand media produced the greatest new shoot number in azalea. The wax myrtle had greater shoot length in peat, sand and soil, and the per lite and peat media at 30cm depth, than in the peat and sand or the sand and coarse bark media. The azalea produced 5 shoots per plant which averaged 23cm in length, while wax myrtle produced 4 shoots with 41 cm in length. There was a decrease in soluble salt level and media pH but an increase in % media moisture with greater sampling depth from surface to bottom. Subirrigation may be beneficial for a wide variety of plants and cultural conditions since it provided a precise amount of water at all times.
Heucheras and heucherellas: Coral bells and foamy bells Timber Press Portland, OR Jones, H.G. 2007 Monitoring plant and soil water status: Established and novel methods revisited and their relevance to studies of drought tolerance J. Expt. Bot. 58 119 130
. 79.38°W), five commonly grown nursery crops were selected for study, based on their economic value and relative importance to Ontario nurseries: bigleaf hydrangea, ‘Green Velvet’ boxwood, ‘Magic Carpet’ spirea, ‘Palace Purple’ coral bells, and rose of
Even though herbaceous perennials have been field produced for many years, there is no general nutrient recommendation for specific fertility level as related to soil type. A survey of Vermont perennial growers indicated that a variety of fertilization methods are in use (Perry and Sanders, 1983). Commercial recommendations vary: 7.8 g N/m2 from 8N–3.5P–6.7K once annually (Sinnes, 1979); 12.2 g N/m2 from 5N–4.4P–4.2K for established plants (Sinnes, 1981; Wyman, 1977); 34.2 g N/m2 from Osmocote 14N–6.2P–11.6K for plants sensitive to fertilizer, 68.5 g N/m2 for nursery stock, and 136.8 g N/m2 for greenhouse crops (Sierra, 1980).
Shoots tips from in vitro cultures of Heuchera sanguinea Engelm. ‘Rosamundi’ were cultured on a modified woody plant medium containing one of 3 cytokinins (BA, 2iP, kinetin) or cytokinin plus NAA. BA and kinetin were the most effective stimulators of axillary shoot growth. Maximum shoot production (≥1 mm) occurred with 2, 4, 8, and 16 μm BA, or 16, 32, and 64 μm kinetin. The addition of NAA had no effect or reduced the number of shoots produced. Because of the rosette growth pattern, rooting of the resultant shoots was best accomplished by placing whole cultures in a soilless medium under high humidity and later dividing the rooted shoot masses. Chemical names used: N-(phenylmethyl)-1H-purin-6-amine (BA); N-(3-methyl-2-butenyl)-1H-purin-6-amine (2iP); N-(2-furanylmethyl)-1H-purin-6-amine (kinetin); and 1-naphthaleneacetic acid (NAA).
Postharvest quality of cut Heuchera sanguinea Engelm. `Splendens' and `Bressingham' was significantly improved and vase life significantly increased by pulsing the inflorescences with 4 mm silver thiosulfate (STS) for 4 hours followed by placing the stems in vase solutions containing 0.5% sucrose and 200 mg·L-1 8-hydroxyquinoline citrate. Under these conditions, nearly all of the buds (>92%) on inflorescences harvested with ≈2% to 3% open flowers developed to anthesis, in comparison with 26% to 28% of the controls. Sucrose concentrations higher than 1% were detrimental and resulted in stem toppling. Treatment with 4 mm STS for 4 hours delayed bud and flower abscission, but longer treatment times resulted in blackening and shriveling of the flower buds. With the absence of sucrose in the vase solutions, flower buds on STS-treated inflorescences did not continue to develop. Ethylene is probably involved in the natural senescence of the flower buds, since exogenous ethylene induced rapid flower abscission, and senescence was delayed by treatment with STS.
of holding solutions and recommends the use of only a hydrator. Armitage and Laushman (2003) indicated that vase life would be from 7 to 10 d with a preservative. Coral bells ‘florists choice’. The longest vase life was obtained when hydrator and