California Horticultural Society

2009 Seed Exchange

The Cal Hort Seed Exchange is open to members only. If you're not a member, please click on the "Membership" link to your left to find out how to become one!

The seed order form is included in the January Bulletin and needs to be returned by the end of February.

All seeds are fully distributed in March.

Thanks to those who donated seed for the exchange this year, without whose participation this program would not be possible, and whose initials in the list below indicate their expressed willingness to be contacted about the plants from which the donated seed came and the conditions under which they grow:

Ruth Bancroft Garden (RBG)
Kate Brovarney (KB)
Alan Brubaker (AB)
Leland Burrill (LB)
Betsy Clebsch (BC)
Barrie D Coate (BDC)
Chris Codding (CC)
Ann Gilmore (AG)
Jan Hamby (JH)
Christie Hastings (CH)
Ed Holm (EH)
Bob Hornback (BH)
Mary Sue Ittner (MSI)
Ron Lutsko – Stonewall Gardens (SG)
Daisy Mah (DM*)
Don Mahoney (DM#)
John D Marchant (JDM)
Charlotte Masson (CM)
Bruce Peters (BP)
Katherine Pyle (KP)
Corina Rieder (CR)
SF Botanical Garden at Strybing Arboretum (SF)
Jill Salmon (JS)
Richard Starkeson (RS)
Patricia Van Aggelen (PVA)
Max Withers (MW)
Kristin Yanker-Hansen (KYH)

and those whose gratefully received donations remain anonymous. Nomenclature and descriptions are those given by these donors.


1.   Acantholimon armenum? (JDM)

2.   Acer palmatum ‘Bloodgood’ (EH): red leaves all summer; stratify 2-3 months

3.   Agave bractiosa

4.   Agave salmiana v ferox

5.   Agrostemma githago (JDM): Corn Cockles

6.   Alcea rosea (BC): to 6’; single white flowers; no rust

7.   Alcea rosea (PVA): to 5’; makes a beautiful white cloud of flowers

8.   Allium ‘Hair Allium’ (JDM): novelty/freak to 2’; green fibery heads with bulbils

9.   Allium crispum (MSI): beautiful native onion from coastal ranges south of San Francisco; good container plant

10. Allium turcomanicum (KP)

11. Allium unifolium (DM#): California native

12. Aloe brevifolia

13. Aloe ciliaris

14. Alyogyne hakeaefolia (RBG)

15. Angelica gigas (DM* & SF)

16. Aristea ecklonii ‘Blue Stars’ (KP)

17. Asclepias curassavica (DM*): to 3’; yellow flowers in summer; attract butterflies

18. Asclepias fascicularis (SG): to 3’; white-pink flower; wild collected in Capay Valley, Yolo County

19. Atriplex hortensis seeds (PVA): Orach; annual to 3’; red leaves

20. Banksia seminuda (SF)

21. Beschorneria x decosteriana (BC): Grantham cross

22. Beschorneria decosteriana x septentrionalis (BC): Grantham cross

23. Beschorneria rigida (MW): from UCBG

24. Beschorneria rigida (SF)

25. Bouteloua gracilis (CR)

26. Brachychiton ‘Majestic Beauty’ (RBG)

27. Brodiaea elegans (MSI): harvest Brodiaea; native bulb for container or garden; shiny purple petals with darker stripe

28. Campanula thessala? (JDM): gray-green rosettes; stems to 8” full of white bells

29. Carpinus caroliniana (BDC)

30. Cedronella canariensis (DM#)

31. Cerinthe major (SG)

32. Chilopsis linearis (RBG)

33. Chlorogalum pomeridianum (MSI): native bulb; wavy leaves, small star-like flowers that open late afternoon into evening creating a dainty show; can reseed a bit more than you might like if happy; put by the Native Americans to a variety of uses

34. Chrysanthemum parthenium ‘Aureum’ (DM*)

35. Citrullus vulgaris ‘White Wonder’ (BP): white fleshed watermelon – OK, really very pale yellow; admittedly not the super sweetest, at least when I grew it, but still tasty and novel – ducks and geese love it!

36. Clarkia purpurea ssp purpurea (DM*): upright to 2’; flowers lavender-pink

37. Clarkia rubicunda ssp blasdalei (DM*)

38. Clarkia williamsonii (DM*)

39. Clarkia sp (DM*): to 12”; blooms May/June; single flowers pink with white eye

40. Cleistocactus sp (not C. straussii)

41. Clematis tangutica (AB & JH)

42. Coix lacryma-jobi (BH): Job’s Tears; tender grass; decorative seed

43. Cornus glabrata (EH): wild collected in the Santa Cruz Mountains, San Mateo County; stratify 2-3 months

44. Crocosmia ‘Lucifer’ (BH)

45. Cynara cardunculus (SG): to 5’; broad leaf form; purple flower

46. Cyphostemma juttae (BP): grape family succulent; beautiful silver leaves; caudex-like trunk; seeds take a long time to germinate

47. Dahlia imperialis (DM#): true dahlia; flowers pink, early and repeat bloom

48. Dahlia x scapigera (DM#): red flower

49. Delphinium cardinale (AB): California native; red flower

50. Delphinium requienii (BC): annual or biennial

51. Dierama pulcherrima (CM): white flowers

52. Dierama pulcherrima: mixed colors

53. Digitalis parviflora (DM*)

54. Dudleya albiflora (CR)

55. Dudleya lanceolata (CR)

56. Dudleya virens ssp hassei (CR)

57. Echinocactus grusonii

58. Echium gentianoides ‘Tajanaste’ (JDM): perennial to 5’

59. Eriogonum crocatum (JDM)

60. Eriogonum douglasii (JDM)

61. Eriogonum grande v rubescens (CR & SF)

62. Eriogonum jamesii v flavenscens (JDM)

63. Eriogonum pauciflorum ssp nevadaense? (JDM)

64. Eriogonum wrightii ssp wrightii (JDM)

65. Eryngium ‘Miss Wilmott’s Ghost’ (JDM)

66. Euphorbia ceratocarpa (SG): to 4’; chartreuse flower

67. Euphorbia coerulescens

68. Euphorbia rigida (SG): to 18”; yellow flower

69. Euryops speciosissimus (RBG)

70. Ferocactus robustus

71. Ferocactus wislizenii

72. Ferula communis glauca (PVA): to 6’; yellow flower

73. Festuca californica (SG): to 3’; silver-blue leaf; wild collected at Shotgun Creek, Shasta County

74. Firmiana simplex (= Sterculia platanifolia) (BDC)

75. Freesia (= Lapeirousia, = Anemotheca) laxa (DM#): small bulb; easy; flower pink with red spots

76. Freesia (= Lapeirousia, = Anemotheca) laxa: small bulb; easy; flower white with red spots

77. Fremontedendron ‘California Glory’ (SF)

78. Fritillaria affinis (SG): to 3’; green-brown flower; wild collected at Mt Veeder, Napa County

79. Galvezia speciosa (CR)

80. Gasteria bicolor hyb (RBG)

81. Habranthus robustus (EH): lovely fall blooming bulb; start in pot, then transfer to ground after two or three years

82. Halesia Carolina (AB): Silver Bells

83. Haworthia truncata (RBG)

84. Helleborus hyb (MSI): mixed colors; good drought tolerant plant for shade

85. Helenium bigelovii (CR)

86. Heracleum lanatum (AB): Cow Parsnip

87. Hesperoyucca (= Yucca) whipplei (RBG & JS)

88. Heteropteris chrysophylla: malpighiaceous vine; yellow flowers followed by red seeds

89. Hibiscus esculentis ’Bowling Red’ (BP): Okra; pick daily during summer as the beautiful red pods grow crazy fast but these remain edible a bit longer than most; leaves heavily splotched deep burgundy

90. Hibiscus ferrugineus (KYH): from Madagascar; relatively profuse one-inch coral pink flowers; plant can handle a hot summer wall with ease, continuing to bloom without blinking

91. Hibiscus heterophyllus 2 3 (BP): easy shrub to 12’;  6” white flowers tinged with pink on the outside; fun one- to three-lobed leaves; sun to part-shade; water to dry

92. Hibiscus trionum (BC & RS): annual

93. Hibscus coccineus alba (KYH): much like its sister the red form, flowers with the petals separated from each other, and can live on both dry land and ponds; although from hot humid climates like Texas and Florida, this hardy perennial can handle our inland heat and dryness as long as it gets regular water; still needs to be tested along the coast and bay

94. Ixia viridiflora (JS)

95. Ixia viridiflora (DM#): mixed, flower color ranges from turquoise to white

96. Knowltonia capensis (SF): rather like a hellebore

97. Lachenalia pustulata (DM#)

98. Lathyrus ‘Cupani’ (DM*): very fragrant Sweet Pea of ancient lineage; flowers purple and pink

99. Lavatera asurgentiflora (SF): California Island native, does well in our continental climate even tolerating frost inland but needs some summer water inland

100.         Lavatera maritima (= bicolor) 2 (CH): large shrub; leaves variegated cream/green; flowers bright purple with veining; acts like biennial, reseeds

101.         Lavatera ‘Barnesly’ (RS)

102.         Leonurus sibericus (JDM): annual or biennial to 6’; can be weedy

103.         Leucocoryne vittata (MSI): beautiful bulb from Chile; seems need warm temperatures to stimulate bloom; can be grown in a deep pot; open pollinated so could be hybrid

104.         Libertia grandiflora (JS)

105.         Linaria purpurea x gynistifolia (KP): haphazard hybrids

106.         Littonia modesta: vine appears yearly mid to late Spring; climbs by tendrils at the tips of leaves, which are in whorls of four; one-inch orange campanulate flowers; withers and disappears for the season after seed is ripe; withstands repeated winter water while dormant

107.         Lobelia tupa (SF)

108.         Lomatium californicum (SG): to 2’; chartreuse flower; wild collected at Cache Canyon, Yolo County

109.         Lomatium sp (SG): to 8”; cream flower; wild collected in the Santa Lucia Mountains, Monterey County

110.         Lupinus arboreus (BC): perennial; yellow flowers

111.         Lupinus hyb (AB): Russell hybrids

112.         Lycopersicon esculentum ‘Black Krim’ (EH): heritage tomato; great flavor; dark brown-red flesh; may crack; open pollinated; indeterminate

113.         Lycopersicon esculentum ‘Bloody Butcher’ (EH): heritage tomato; juicy; red flesh; medium size; open pollinated; indeterminate

114.         Lycopersicon esculentum ‘Brandywine’ (EH): heritage tomato; rich flavor; red flesh; to 24 oz; Amish origin; open pollinated; indeterminate

115.         Lycopersicon esculentum ‘Cherokee Purple’ (EH): heritage tomato; like ‘Black Krim’ but less prone to cracking; open pollinated; indeterminate

116.         Lycopersicon esculentum ‘Costoluto Genovese’ (EH): heritage tomato; ugly but delicious; good in hot or cool weather; open pollinated; indeterminate

117.         Lycopersicon esculentum ‘Julia Childs’ (EH): heritage tomato; as good as she was; open pollinated; indeterminate

118.         Lycopersicon esculentum ‘Orange Pineapple’ (EH): heritage tomato; delicious; beefsteak type; multicolor interior flesh; open pollinated; indeterminate

119.         Lycopersicon esculentum ‘Purple Calabash’ (EH): heritage tomato; winey flavor; most purple flesh of all tomatoes; open pollinated; indeterminate

120.         Lycopersicon esculentum ‘White Queen’ (EH): heritage tomato; juicy and sweet; beefsteak type; white flesh; open pollinated; indeterminate

121.         Lysimachia minoricensis (BP): grown for its dark green leaves etched with silver veins; a little tricky to get going, but then quite easy; can re-seed gently in moist soil; great in a rock wall

122.         Michelia champaca (BP): very floriferous with beautiful scent often used for perfume; long yellowish leaves; part-shade to sun in cooler climates

123.         Mimulus hyb (SF): woody shrub; large flowers pure white

124.         Muscari neglectum (KP)

125.         Nigella hispanica ‘Curiosity’ (DM*)

126.         Nyssa aquatica (BDC): pyrimidal tree to 35’; collected from a boat in a tidal brackish marsh, Pawley’s Island SC

127.         Ochna pulchra (SF)

128.         Oenothera elata hirsutissima (EH): wild collected at 3000’ in Plumas County; stratify 2-3 months

129.         Onixotis stricta (DM#)

130.         Orlaya grandiflora ‘Minoan Lace’ (AG): 20” umbel of white flowers; sun or part shade

131.         Ornithogalum fimbrimarginatum (PVA)

132.         Orthosanthus chimboracensis (SG): to 18”; blue flower

133.         Orthosanthus sp (SG): to 16”; violet-blue flower

134.         Osteomeles schweriniae (BDC)

135.         Othonna retrofracta (RBG)

136.         Papaver pilosum (KP): semi-double flower

137.         Papaver pilosum floreplena (CM)

138.         Papaver somniferum (BC): single

139.         Papaver somniferum (PVA): to 3’; mauve flower

140.         Passiflora membranacea (SF)

141.         Pavonia rubra (KYH): South American; flowers red and orange all summer and well into fall; full sun

142.         Penstemon smallii (CR)

143.         Pinus coulteri (JS): grown in New Zealand

144.         Platystemon californicus 2 (LB): Cream Cups

145.         Psoralea pinnata

146.         Quillaja saponaria (BDC)

147.         Rhododendron occidentale (AB): California native; start in coconut fiber, do not cover

148.         Rosa palustris (BDC): shrub to 4’ tall. 12’ broad; collected from a boat in a tidal brackish marsh, Pawley’s Island SC

149.         Rosa pinetorum (EH): wild collected at 4000’ in Plumas County; stratify 2-3 months

150.         Salvia apiana (BC)

151.         Salvia curtiflora (SF)

152.         Salvia karwinskii (RS): to 15’, can be trimmed lower; large sprays of red flowers

153.         Salvia patens ‘Lavender Lady’ (PVA)

154.         Salvia pratensis ssp haematodes (BC)

155.         Salvia semiatrata (SF)

156.         Salvia spathacea ‘Powerline Pink’ (CC)

157.         Scabiosa hyb (AG): flower chocolate-burgundy

158.         Selago serrata (JDM): perennial to 3’

159.         Senna artemisoides (RBG)

160.         Senna phyllodenia (RBG)

161.         Sideritis cypiria

162.         Solanum sp (RS): to 18”; lots of blueberry-sized fruits

163.         Solidago californica (KYH): low growing and very drought tolerant; planted in my Danville dry area in late winter, bloomed throughout our drought-ridden hot summer, in full sun, without any water at all

164.         Sparaxis elegans (DM#)

165.         Sparaxis meterkemperi (DM#)

166.         Stylomecon heterophylla 2(LB)

167.         Synodea (= Sparaxis) variegata (DM#): South African bulb; flowers pink/yellow

168.         Tabebuia chrysotricha (RBG)

169.         Tagetes lemonii (AG): Mexican

170.         Taxodium distichum (BDC): pyrimidal tree to 40’; fall color rust to orange; collected from a boat in a tidal brackish marsh, Pawley’s Island SC

171.         Tecoma stans (RBG)

172.         Tecoma stans ‘Gold Star’ (RBG)

173.         Trachelium ‘Hamner Pandora’ (JDM)

174.         Tradescantia pallida ‘Purple Heart’ (BC)

175.         Trichosporum (= Aeschynanthus) radicans (SF): gesneriad for warm greenhouse; flowers bright red

176.         Triteleia dudleyi (MSI): native to from Tulare County; small yellow flowers with purple anthers; good for container culture

177.         Tritelia laxa (DM#)

178.         Trochetiopsis ebenus (SF): endangered plant originally found on the cliffs of Napoleon’s St Helena; needs a climate of little to no frost to survive

179.         Tropaeolum majus (KB): nasturtium “Whirlybird Cream”; semi-double flowers medium yellow

180.         Tropaeolum majus (KB): nasturtium; single flowers light yellow

181.         Tweedia caerulea (= Oxypetalum caeruleum) (JH & JS)

182.         Verbascum bombyciferum ‘Arctic Ice’ (SG): to 6’; yellow flower

183.         Verbena hastata ‘Alba’ (BC): to 4’; mid-summer bloom

184.         Veronicastrum virginicum (KB): like veronica to 3’ tall, 1’ wide; flower spikes clear white; deciduous

185.         Vigna (= Dolichos) sesquipedalis (EH): Chinese Long Bean

186.         Vitis rotundifolia (BDC): Muscadine Grape; vigorous to 100’, but sparingly watered forms a vining shrub in Los Gatos; collected from a boat in a tidal brackish marsh, Pawley’s Island SC

187.         Watsonia aleroides (DM#)

188.         Watsonia humilis (DM#)

189.         Xanthoceras sorbifolia (BC): stratify

190.         Yucca gloriosa?: variegated

191.         Yucca schottii

192.         Zinnia peruviana (DM#): annual

193.         Zinnia ‘Old Mexico’ (PVA): to 18”; mildew resistant; 2” flowers double pompoms, deep mahogany red with bright gold to orange

194. mystery seed Calandrinia spectabilis (RS): succulent leaves; one-inch five-petalled pink flowers trailing on stalk, opening for one day one at a time