| Plant Type | Cultivar | Plant, Seed, Root or Cutting |
| Brassica oleracea var. botrytis | 'Snowball Self-Blanching' | Seeds (Purchase) |
| Brassica oleracea var. botrytis | 'Violetta Italia' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Black Palm Tree' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Charleston Wakefield' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Copenhagen Market' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Danish Ballhead' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Early Flat Dutch' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Early Jersey Wakefield' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Early Round Dutch' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Late Flat Dutch' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Mammoth Red Rock' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Red Acre' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Savoy Drumhead Perfection' | Seeds (Purchase) |
| Brassica oleracea var. capitata | 'Wisconsin All Seasons' | Seeds (Purchase) |
| Brassica oleracea var. gemmifera | 'Catskill' | Seeds (Purchase) |
| Brassica oleracea var. gemmifera | 'Long Island Improved' | Seeds (Purchase) |
| Brassica oleracea var. gongylodes | 'Early Purple Vienna' | Seeds (Purchase) |
| Brassica oleracea var. gongylodes | 'Early White Vienna' | Seeds (Purchase) |
| Brassica rapa | | Seeds (Purchase) |
| Brassica rapa | 'Amber Globe' | Seeds (Purchase) |
| Brassica rapa | 'Gold Ball' | Seeds (Purchase) |
| Brassica rapa | 'Purple Top' | Seeds (Purchase) |
| Brassica rapa | 'Seven Top' | Seeds (Purchase) |
| Brassica rapa | 'Shogoin' | Seeds (Purchase) |
| Brassica rapa | 'Tokyo Cross' | Seeds (Purchase) |
| Brassica rapa var. chinensis | 'Michihli' | Seeds (Purchase) |
| Brassica rapa var. chinensis | 'White Stem' | Seeds (Purchase) |
| Brassica ruvo | 'Sorrento' | Seeds (Purchase) |
| Brodiaea californica | | Roots, Tubers and Bulbs (Purchase) |
| Brodiaea coccinea | | Roots, Tubers and Bulbs (Purchase) |
| Brodiaea ixioides | 'Starlight' | Roots, Tubers and Bulbs (Purchase) |
| Calendula officinalis | | Seeds (Purchase) |
| Callistephus chinensis | 'Crego Mix' | Seeds (Purchase) |
| Calochortus luteus | 'Golden Orb' | Roots, Tubers and Bulbs (Purchase) |
| Calochortus superbus | | Roots, Tubers and Bulbs (Purchase) |
| Calochortus venustus | | Roots, Tubers and Bulbs (Purchase) |
| Calonyction aculeatum | | Seeds (Purchase) |
| Camassia cusickii | | Roots, Tubers and Bulbs (Purchase) |
| Camassia quamash | | Roots, Tubers and Bulbs (Purchase) |
| Campanula medium | | Seeds (Purchase) |
