Following this long-term soil storage, three of these species - Dendromecon, Dicentra
, and Trichostema - were stimulated to germinate by smoke treatment [ILLUSTRATION FOR FIGURE 6 OMITTED], but soil-stored seeds of the fourth species, Phacelia brachyloba, still failed to germinate (not shown).
ochroleuca is a typical biennial species that germinated in the first year after fire and died after the second year [TABULAR DATA FOR TABLE 2 OMITTED] of growth.
Erythronium americanum, Dicentra
canadensis) are negatively correlated with the abundances of woody and herbaceous exotics.
The beds around the seat are bursting with pretty primulas, dicentra
and alchemilla mollis.
Q I bought a plant of Dicentra
spectabilis last year and this spring it grew rapidly to 3ft high and rather more across.
Otherwise known as dicentra
spectabilis, this British favourite originates from China and will thrive in both sunny and shady locations in almost any soil type.
SPECTABILIS (BLEEDING HEART) These pretty, delicate-looking cottage garden perennials grow to around 1m (3ft) and produce beautiful pink and white heartshaped flowers which last for six to eight weeks in late spring.
species will perform well in partial shade but do not care for acid soils.
Just now it has quite a lot of interest, from drifts of pink and blue herbaceous geraniums, patches of white flowered dicentra
and bright yellow daisies on doronicum.
Typical genera of plants with species using this dispersal syndrome include Asarum, Claytonia, Dentaria, Dicentra
, Erythronium, Jeffersonia, Sanguinaria, Trillium, and Viola.
Other good choices include a white lilac, Syringa vulgaris Alba and a white Dicentra
spectabilis Alba, which has heart-shaped flowers, while the ferny leaves look wonderful under trees or around shrubs.
Plant of the week Dicentra
spectabilis (Bleeding heart)