8 
Coi^oRADo Experiment Station 
will vary north and south of this point and also as regards alti¬ 
tude. Approximately ten days difference may be allowed for 
each 1,000 feet of altitude and 100 miles of latitude. 
It is necessary, in the case of many vegetables, of course, to 
start the plants inside during March or April. In order to do this, 
some place where the temperature can be controlled is necessary. 
Hotbeds, coldframes, small greenhouses, and even well-lighted 
windows on the south side of the house are suitable for this pur¬ 
pose. 
March 1st to 15th 
Sow seeds of the following in shallow boxes of light soil and 
grow in a warm living room or hotbed. After plants have devel¬ 
oped three or four leaves, transplant into other boxes, putting 
plants about two or three inches apart each way: 
Cabbage 
Celery 
Cauliflower 
Tomatoes 
April 1st 
Outdoors: Plant one-year-old roots of asparagus. 
Divide old roots of rhubarb and plant. 
Plant root cuttings of horseradish. 
Put out onion sets. 
Indoors: Sow seeds of Brussels Sprouts. 
April 15th 
Sow seeds of the following in the field: 
Lettuce. 
Radishes 
Kohlrabi 
Onions 
Parsley 
Peas 
Spinach 
Turnips 
Parsnips 
Salsify 
April 25th 
Plant in the field: 
Beets 
Carrots 
Cauliflower Plants 
Swiss Chard 
Cabbage Plants 
