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Re: bulb bloomtimes

I sent those who asked the Excel spreadsheet, but in case anyone else wants
the info, I've pasted it here.  If you'd rather the .xls file, just let me


soil temperature,
night temperature
size of bulb, root or tuber
damp or dry
not greenhouse started

Planting period:
end April - first part May

Difference between varieties

ITEM # days comments * frostsensitive
Acidanthera 100-110
Aesaema Arisaema 60-90
Agapanthus bareroot  second year  *
Agapanthus small pots 115-125 August *
Alocasia 120-150
Alstroemeria 120-140
Amaryllis belladonna 90-100 second year August *
Arum italicum 150-180 orange seed pods
Begonias 100-130  *
Bletilla 80-100
Caladiums coloured leaves 120-150  *
Cannas 120-150  *
Cardiocrinum 150-180 second/ third year
Colocasia 120-150
Crinum  second/third year August *
Crocosmia 100-120
Curcuma 100-120  *
Cyclamen hardy 120-150 fall flowering
Cyrtanthus(Vallota) 100-120  *
Dahlias 90-120  *
Dodecathion 60-80
Eremurus 100-120 fall planting preferred
Eucharis 100-120  *
Eucomis 100-120  *
Galtonia 80-100  *
Gladiolus 90-120  *
Gloriosa 100-140  *
Haemanthus 100-120  *
Hemenocallis(Ismene) 90-110
Hepatica 60-80
Incarvillea 70-80  *
Liatris 90-110
Lilies asiatics and LA's 70-90
Lilies orientals 115-125
Lilies rubrums 140-150
Lilies tigrinum 90-100
Lilies trumpets 90-100
Lycoris  150-180 normally not the first year *
Mertensia 60-80
Montbretia / Crocosmia 100-120
Oxalis 60-80
Polyanthus 140-170  *
Sprekelia 80-100  *
Tigridia 70-90
Trillium 3 yrs second/third year
Zantedeschia 100-120  *
Zephyranthus 100-120

Data were taken in zone 5.
Planting in containers with warmer soil temperatures will produce faster
flowering plants.
Planting later in the season when the soil temperatures have gone up will
produce faster flowering plants.
Sprouting bulbs etc. indoors will produce faster flowering plants.
Flowering time is determined by all the factors or a combination of factors
mentioned above.
Respectfully, John Vandenberg

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