SHERRY'S GREENHOUSE  

When to sow seeds to produce transplants from your greenhouse

Example: average last frost date of April 20

plant name

# weeks
to start
before
trans-
planting

your date
to start seeds

when to set out (weeks before or after last frost) your date
to set out plants

best soil temp. for germi- nation
(deg. F.)

days to emerge best air temp. for growing transplants
(deg. F.)
notes
Cucumber 2-3 wks

Apr 6 or 13
(if grown
3 wks)

1-2 wks after Apr 27 or
May 4
75 3-8 70 can direct seed 2 wks after last frost

seed sources

Spring vegetable planting (for transplants)

Your average last frost date: __________________________ (see frost date info.)
plant name

# weeks
to start
before
trans-
planting

your date
to start seeds

when to set out (weeks before or after last frost) your date
to set out plants

best soil temp. for germi- nation
(deg. F.)

days to emerge best air temp. for growing transplants
(deg. F.)
notes
Basil 6 wks   1-6 wks after    75-85 3-9 70-80  can direct seed when soil is warm
Beans, lima 3-4 wks   1-2 wks after    65-85 7-18 60-70 can direct seed 2 wks after last frost
Beans, snap or pole 3-4 wks   8 wks after    60-85 4-10 60-70 can direct seed anytime after last frost
Beets 3   4 wks before    50-85 5-10 60-65 also direct seed
Bok choy
(Pak choi)
2   just after to
late
summer
  60-85 4-6 55-70

also direct seed - use
light row
cover to
avoid flea beetles.

Broccoli 5-8 wks   4 wks before to 2-3 wks after   70-75 10-15 60 can direct seed 4-6 wks before last frost
Brussells Sprouts 5-8 wks   4 wks before to 3 wks after   70-75 10-15 60  
Cabbage 5-8 wks   5 wks before to 2-3 wks after   70-75 4-10 60  can direct seed just after last frost
Carrots 5-6 wks   4 wks before   45-85 6-14 60-65 can direct seed 4-6 wks after last frost
Cauliflower 5-8 wks   1-2 wks before to 2 wks after   70-75 5-10 60  
Celeriac 8 wks   anytime after   70 10-21 60-65  
Celery 6-8 wks   3 wks before to 4 wks after   60-70 5-7 60-65
nights above 40
 
Chininese Cabbage 4 wks   4-6 wks before   70-75 3-5 60  
Chives 6-8 wks   anytime after   60-70 10-14 60-75  
Collards         55-75     direct sow until mid July
Corn 4 wks   2-3 wks after   60-95 4-21 60-75 can direct seed early types 2 wks after last frost; othesr 4 wks after
Cucumber 2-3 wks   1-2 wks after   75 3-8 70 can direct seed 2 wks after last frost
Dill 8-10   anytime after   50-70 14 65-75 can direct seed anytime after last frost
Eggplant 6-8 wks   2-3 wks after   70 5-13 75  
Endive 4-6 wks   4 wks before to 2 wks after    45-70  2-15  60-70  
Escarole 4-6 wks   4 wks before to 2 wks after    45-70  2-15  60-70  
Garlic, bulb 4-6 wks   2-4 wks before to 1 wk after         set point 1 inch deep; can plant directly 4-6 wks before last frost or in Oct in maritime NW USA
Kale 6-8 wks   5 wks before to 2 wks after    55-75 5-15  60 can direct seed after last frost
Kohlrabi 5-8 wks   5 wks before   70-75 3-10 60  can direct seed 4-6 wks before last frost
Leeks 8-10 wks   6 wks before   70 7-14 60  
Lettuce 4-7 wks   2 wks before to 3 wks after   65-70 3-6 60  
Muskmelon 2-3 wks   2-3 wks after   75 3-8 75  
Onions 8-10 wks   6 wks before   55-75 6-12 55-75  
Onions, bunching 4-6 wks   4-5 wks before to 2 wks after    55-75 6-12   55-75  
Pac choi
(see
Bok Choy)
               
Watermelon 2-3 wks   2-3 wks after   75 3-8 75  
Parsley 4-6 wks   4-6 wks after   70-75 12-17 60 soak seeds overnight
Peas 4 wks   4 wks before to 3 wks after         best direct seeded
Peppers 6-8 wks   2-3 wks after   75-80 8-13 70  
Pumpkins 2-3 wks   1-3 wks after   70-75 6-10 70  
Spinach, Malabar 8-10   anytime after         can direct seed 1 wk after last frost
Spinach, New Zealand 4-6 wks   anytime after         can direct seed anytime after last frost
Spinach, other 4-6 wks   3-6 wks before    45-70    60-65 can direct seed when soil temp is 45-50
Squash, winter & summer 2-4 wks
  1-3 wks after
  70-75 6-10 70  
Sweet potatoes 6-8 wks   2-3 wks after         can also start from purchased slips
Swiss chard 4 wks   3-4 wks before to 8 wks after    50-75  5-14   can direct seed 2-4 wks before last frost
Tomatoes 6-10 wks   2-4 wks after   70-75 6-14 70  
Turnips 3-4 wks   4 wks before          can direct seed 4-6 wks before last frost
                 
From Oregon State University extension service:
Soil temperature is key to the timing of veggie planting in spring
From the Business Department of the Institute for Executive Development in Spain:
Santander scholarships from IEDE

From the Santander Consumer offices in Texas:
Santander Consumer USA

From the Boston University School of Public Health in Massachusetts:
Apply for the Santander Universities Scholarship program

From Western Michigan University Santander Education Program:
Studying abroad in Santander

From Harvard Universities Latin American Studies in Santander:
Santander Visiting Scholar

seed sources

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