MIKKELSEN & SONS GREENHOUSES 
Ashtabula, Ohio 
Our stock plants are grown in sterilized soil and 
the cuttings are rooted in sterilized sand and peat. . All 
Stock plants and cuttings are under the influence of incandes-— 
cent lights from August lst to May 15th and are grown under 
automatically controlled temperatures, 
The following information is given as a guide for 
the cultural practices as listed and are now hard and Tast 
rules for any particular operation: 
MEAN Sis BES 
8, 9 and 10 week varieties should be lighted from August 
ist to May 1st to 15th if bud initiation is to be prevented 
and providing the plants are grown at 60° maximum. ll week 
varieties should be lighted August 15th to Apra lS the or May. 
ist. 12, 15 and 14 week varieties should be Lignted September 
ist to April 1st to the 15th. One to two hours of light during 
August should be sufficient, increasing to three hours during 
September, four hours during October and five hours during the 
months of November and December and then diminishing during 
January to four hours, March to three and April to two and one. 
SHADING 
8, 9 and 10 week varieties must be Shaded from April lst 
to Seotember 15th to insure Pespomse to bud initiation, “Lh 
week varieties should be shaded March 15th to October lst, and 
12, 13, and 14 week varieties should be shaded from March lst 
to October 15th. 
SPACING 
Pompons bloomed during November, December and January 
Should have 32 sq. in. per stem. October, February and March 
require about 28 sq. in. per stem, and any Pompons flowered 
from April through September should have about 24 sq, in. per 
stem, Spacing on Mums for the same periocs would require 
respectively 36, 32 and 28 sq. in. per flower. 
WARRANTY 
All stock is sold without warranty, express or implied, 
of description, quality, productivity or otherwise. All 
iiabllity for your crop is hereby disclaimed, 
