21. CONSOLIDA ambigua - Larkspur

 CONSOLIDA ambigua  Larkspur    kon-sol’-id-da am-big’u-a  Annual  Easy Ranunculaceae; native to Southern Europe. Germination: Sow outdoors in early spring and cover the seeds with 4 times their thickness in soil. Indoors, sow 6-8 weeks...

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22. CONVOLVULUS tricolor - Dwarf Morning Glory

 CONVOLVULUS tricolor  Dwarf Morning Glory    kon-vol’vu-lus tri’kul-er  Annual*  Easy Convolvulaceae; native from Portugal to Greece and North Africa. Germination: Best sown indoors at 68-86° at a depth four times the diameter of the...

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23. CORDYLINE indivisa - Cabbage Palm

 CORDYLINE indivisa  Cabbage Palm    kôr-di-li’ne in-di-ve’så  Annual*  Moderate Agavaceae; native to New Zealand. Germination: Best sown indoors at alternating temperatures of 68 and 86°. Sow with no cover as light aids in...

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24. COREOPSIS tinctoria - Tickseed

 COREOPSIS tinctoria  Tickseed    kôr-e-op’-sis tink-tôr’e-å  Annual  Easy Asteraceae; native to U.S. and Canada. Germination: Sow outdoors where plants are to grow when all danger of frost has past. Indoors, sow 6-8 weeks before...

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25. COSMOS - Cosmos, Mexican Aster

 COSMOS  Cosmos, Mexican Aster  Zones 7-10  kos’mos  Annual  Easy Asteraceae; native to Mexico. Germination: Sow outdoors where plants are to grow when danger of frost has past. Sow indoors 5-7 weeks before planting outside. Cover the seeds...

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26. CUCURITA Pepo var. ovifera - Yellow-Flowered Gourds

 CUCURITA Pepo var. ovifera  Yellow-Flowered Gourds    ku-ker’-bi-tå  Annual  Easy Cucurbitaceae; native to Texas. Germination: Sow outdoors in spring where seeds are to grow. For best results, sow indoors, cover the seeds with four times...

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27. CUPHEA ignea - Cigar Flower, Firecracker Plant

 CUPHEA ignea  Cigar Flower, Firecracker Plant    ku-fe-å ig’ne-å  Annual  Easy Lythraceae; native to Mexico. Germination: Sow outdoors where plants are to grow and barely cover the seeds. For best results, sow indoors, leave the seed...

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28. DATURA - Thorn Apple

 DATURA  Thorn Apple  Zones 9 to 10  då-tu’-rå  Annual  Easy Solanaceae; native to tropical America, Mexico, and Europe. Germination: For best results, sow indoors 2-3 months before planting outdoors and cover the seeds with four times...

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29. DIANTHUS species & hybrids - China Pink, Sweet William

 DIANTHUS species & hybrids  China Pink, Sweet William    di-an’-thus  Annual*  Easy Caryophyllaceae; native to Europe and China. Germination: Sow outdoors in spring, 6-8 weeks before transplanting outdoors. Cover the seeds with four times...

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30. DIASCIA barberae - Twinspur

 DIASCIA barberae  Twinspur  Zones 8 to 9  di-as’e-å bar’-ber-a  Annual  Easy Scrophulariaceae; native to South Africa. Germination: Best sown indoors at 68-70° at a depth 4 times the diameter of the seed. Seeds will germinate in 10-15...

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