Silverhill Seeds Catalogue 25 April 2013 (alphabetically)

Oncoba spinosa (Flacourtiaceae) US$ 3.50 per Pkt
"Snuff-box tree", 3-5m shrub/small tree, spiny, dark green shiny leaves, showy scented white fl with golden stamens Sp, reddish-brown fruit, med.
Sow Sp. Zone 10.
Oncosiphon africanum (Asteraceae) US$ 3.50 per Pkt
Erect ann to 30cm, divided lvs, white daisy fl with yellow centres Sp. Sow Au. Zone 8.
Oncosiphon grandiflorum (= Pentzia grandiflora) (Asteraceae) US$ 3.50 per Pkt / US$ 6.00 per Gram
To 40cm ann, dissected aromatic leaves, yellow fl heads Sp. About 7500 seeds/gram. Sow Au. Zone 7.
Oncosiphon intermedium (Asteraceae) US$ 3.50 per Pkt
Robust aromatic ann to 40cm, divided lvs, deep yellow to orange fl Sp, heads have fluffy appearance. Sow Au. Zone 8.
Oncosiphon piluliferum (Asteraceae) US$ 3.50 per Pkt / US$ 6.00 per Gram
"Karoostinkkruid", to 30cm ann, yellow fl Sp-Su. Sow Au. Zone 8.
Oncosiphon suffruticosa (Asteraceae) US$ 3.50 per Pkt
30-50cm much-branched ann, aromatic leaves, yellow fl Sp. Sow Au. Zone 8.
Onixotis punctata (Colchicaceae) US$ 3.50 per Pkt
"Hanekammetjie", 10-20cm geophyte, lanceolate leaves, short spikes of white to pink fl Wi-Sp. Sow Au. Zone 8.
Onixotis stricta (old name O. triquetra) (Colchicaceae) US$ 3.50 per Pkt / US$ 6.00 per 100
20-50cm, 3 channelled leaves, pale pink fl with dark purple centre Sp, wet/water. Sow Au. Zone 8.
Oophytum nanum (Mesembryanthemaceae) US$ 3.50 per Pkt
Dwarf, ovoid pulpy leaves, white pink-tipped fl, pot. Sow Au.
Oophytum oviform (Mesembryanthemaceae) US$ 3.50 per Pkt
Dwarf tufted plant in clusters, pink fl Au, dry Su, water sparingly Au & Wi. Sow Au.
Oplismenus hirtellus (Poaceae) US$ 3.50 per Pkt
"Basket grass", creeping or rambling perenn, broad lvs, purple sticky awns, grows in dense shade in forests. Sow Sp. Zone 9.
Orbea variegata (Apocynaceae) US$ 3.50 per Pkt
4-angled toothed stems form mat, fl variable, but usually yellow with purple-brown dots Au, coastal. Sow Au. Zone 8.
Ormocarpum kirkii (Fabaceae) US$ 3.50 per Pkt
"Small caterpillar pod", to 7m shrub/tree, dark brown scaly bark, small leaflets, large pink pea-shaped fl flushed deep mauve in centre Sp-Su. Sow Sp.
Zone 9.
Ormocarpum trichocarpum (Fabaceae) US$ 3.50 per Pkt
"Caterpillar pod", 3m shrub/tree, blackish-brown bark, compound leaves, mauve-pink pea fl Sp-Su, pod with stiff gold hairs. Sow Sp. Zone 10.
Ornithogalum (Hyacinthaceae) US$ 3.50 per Pkt
All the species listed below are Wi-growing & Su-dormant & are from Zone 8 unless otherwise specified.
Ornithogalum ceresianum (Hyacinthaceae) US$ 3.50 per Pkt / US$ 6.00 per 100
To 30cm, white flowers with big black centre Sp. Sow Au.
Ornithogalum conicum (Hyacinthaceae) US$ 3.50 per Pkt
"Viooltjie", 0.4-1m, showy white fl Su. Sow Au.
Ornithogalum corticatum (Hyacinthaceae) US$ 3.50 per Pkt / US$ 6.00 per 100
30cm plant, erect lvs, compact spike clear white fl early Su after lvs have gone dormant. Sow Au. Zone 7.
Ornithogalum dubium (Hyacinthaceae) US$ 3.50 per Pkt
10-50cm, white/yellow/orange fl Sp-Su, cut fl, sun, well-dr soil. Sow Au. White & yellow colour forms available.
Ornithogalum hallii (Hyacinthaceae) US$ 3.50 per Pkt
To 20cm, white fl Sp. Sow Au. Zone 8.
Ornithogalum hispidum (Hyacinthaceae) US$ 3.50 per Pkt
10-40cm, pubescent leaves, white fl Sp-Su, clay flats or rock outcrops, dry. Sow Au.
Ornithogalum juncifolium (Hyacinthaceae) US$ 3.50 per Pkt
15cm, Su-growing, white fl with brown streaks Sp. Sow Sp. Zone 7.
Ornithogalum maculatum (Hyacinthaceae) US$ 3.50 per Pkt
8-50cm, orange or yellow fl, outer petals with dark tips Sp. Sow Au. Seeds of yellow, orange & dark orange forms available.
Ornithogalum multifolium (Hyacinthaceae) US$ 3.50 per Pkt / US$ 6.00 per 100