Descriptions of Registered Cultivars
ORIGIN: Grevillea 'Winpara Gold' is a possible hybrid between G. thelemanniana subsp preissii and G. olivacea which arose as a seedling at "Winpara", near Jervois, South Australia. The name refers to the colour of the flowers. The cultivar was first received by the Authority in August 1988. Registration applied for by P & B Bartlett of Jervois, South Australia.
DESCRIPTION: This cultivar is a dense shrub to 2m tall by up to 3m wide. The leaves are grey-green and deeply divided (almost to the midrib) and are up to 6cm long. The leaf edges are rolled under. The venation under the leaf is particularly prominent. Each leaf lobe has a short but pungent tip. The upper surface of the leaf has scattered silky hairs while the lower surface other than the veins is covered with a dense mat of closely appressed silky hairs. The branchlets are also covered by fine hairs that diminish as the wood matures. The flowers are in racemes ca. 25mm long produced terminally on short lateral branchlets arising from the older wood. This sometimes leads to the flowers being partially obscured by younger growth. Individual flowers are densely packed on each raceme. The perianth is orange-gold in colour, and has a dense covering of fine white hairs. The perianth is 7-8mm long and splits into four segments. The style is reddish and hooked when it first emerges but soon straightens, measuring ca. 14mm long. The flowers are produced from April to November.
DIAGNOSIS: Grevillea 'Winpara Gold' is identical to Grevillea 'Winpara Gem' except for the flower colour, 'Winpara Gem' having pink-red flowers and 'Winpara Gold' having a yellow perianth and pink styles.
CULTIVATION NOTES: The cultivar is very drought tolerant and very frost hardy. It grows in conditions similar to Grevillea 'Winpara Gem' ie sandy or clay soils in an open sunny situation. The cultivar is known to withstand high pH and responds well to pruning. The cultivar must be grown by vegetative means to preserve the cultivar form. The cultivar was first introduced to horticulture by Nellie's Nursery of Mannum, South Australia.
COLOUR CODE: RHS Colour Chart 1966
perianth: close to Yellow Group 4C
style: Red Group 55A
pollen presenter: Yellow Green Group 154A
ACRA REFERENCES: ACC427, ACRA296, CBG8802467
ACCEPTED FOR REGISTRATION ON: 11 October 1991