Chicago AMERICAN BULB CO. New York 
TIME TO SOW AND CULTURAL HINTS 
The following infomiation will, we hope, prove of assistance to growers, primarily as a reminder of 
when to sow Flower Seeds of most important kinds, likewise a few suggestions as to culture of same. 
See alphabetically arranged list in this hook lor details and prices with regard to the respective sorts. 
(A) indicates Annual; (B) indicates Biennial; (P) indicates Perennial. 
SEEDS TO SOW IN JANUARY 
SEEDS TO SOW IN MARCH (Continued) 
Acroclinium (for cutting) 
Agathea (for cutting) 
Ageratum (Blue Cap Reselected) 
Aloe Variegata (for pot culture) 
Antirrhinum (for cutting) 
Asparagus Sprengeri 
Asparagus Plumosus Nanus 
Balsam (Bush var.) (for pot culture) 
Begonias 
Browallia (for pot culture) 
Calendulas (for cutting) 
Candytuft (for cutting) 
Campanula (Annual, for pot culture) 
Carnation (Annual, for plants) 
Centaurea (Candidissima (Dusty 
Miller) 
Gymnocarpa (Dusty Miller) 
Cyanus (for cutting) 
Chrysanthemum (Annual) 
Cineraria Maritima (Dusty Miller) 
Clarkia (for cutting) 
Cobaea Scandens 
Coleus Glory 
Cuphea 
Cynoglossum (for cutting) 
Dahlias Unwin (fine pot plants) 
(plant tubers for Mother's Day) 
Daisy Beilis (B) 
Dracaena Indivisa 
Delphinium (P) 
Exacum (for pot culture) 
Gypsophila (Annual) 
Impatiens (fine for shade) 
Kalanchoe 
Larkspur (Annual, for cutting) 
Leptosyne (for cutting) 
Linaria (for combination) 
Lobelias 
Marigolds 
Mimulus (for pot culture) 
Nemesia (for combination) 
Nasturtiums 
Nierembergia Hippomanica 
(for pot culture) 
Pansies (A. B. C. De Luxe Mixed) 
Pennisetum (Ornamental Grass) 
Petunias 
Pentstemon (Sensation) (Var.) 
Phlox (Combinations) 
Salpiglossis (for cutting) 
Salvia 
Schizanthus A. B. C. Mother's 
Favorite 
Smilax 
Solanum (Xmas Cherry or Pepper) 
Stocks Column and Branching 
Sweet Peas (Early Spencer & Inter¬ 
mediates) 
Torenia (for pot culture) 
Verbena Dwarf (for combinations) 
Vinca Rosea (plants) 
Viola Cornuta 
Sown in January 
Benching 
Blooming 
Culture 
Antirrhinum 
March 
April-June 
Pinch February 15th. 
Begonias (Seed) 
Jan. 
Aug.-Dee. 
Browallia 
March 
May-June 
Candytuft & Nemesia 
Jan. 
May-June 
Sow directly in flats, 
bench. 
Centaurea Cyanus 
Feb. 
April 
One pinch. 
Grow 2" or shallow 
flats. Poor soil. 
Clarkia 
Jan. 
April-Moy 
Gypsophilia 
Jan. & every 
two weeks 
March 15 
Sow directly in flat or 
bench. 
Kalanchoe 60°-65° 
March 
Dec. 1-15 
Shade 3 hrs. Aug. 15- 
Oct. 1. 5-8 P.M. 
Lupinus 
Jan. 
April 
Petunias 
Jan. 
April-June 
Salvia 
Feb. 
July-Aug. 
Keep bushy. 
Solanum 
March 
Berried Dec. 
Pinch March. 
Stocks 
March 
Memorial Day 
Grow below 50°. 
Sweet Peas 
Jan. 
April-June 
Torenia 
Feb. 
June-July 
Pinch March. 
SEEDS TO SOW IN FEBRUARY 
Ageratum (Blue Cap) 
Antirrhinum (Tom Thumb for com¬ 
binations) 
Asparagus Plumosus 
Asparagus Sprengeri 
Asters (for forcing) 
Calendula 
Campanula Annual 
Candytuft (Dwarf for combinations) 
Carnation Annual (for plants) 
Centaurea Candissima (Dusty Miller) 
Centaurea Cyanus 
Dahlias Unwin (for plants) 
Delphinium (P) 
Dracaena Indivisa 
Gypsophila Annual 
Larkspur 
Linaria (for combinations) 
Marigold (Dwarf for combinations) 
Mignonette (for cutting) 
Mimulus (for acts) 
Nasturtiums 
Nemesia (Combination) 
Nierembergia 
Pennisetum (Ornamental grass) 
Petunias 
Phlox (Dwarf strain for combinations) 
Poppies (Annual) 
Primula Obconica 
Salpiglossis (for cutting) 
Salvia (for plants) 
Stocks 
Sweet Peas (Late varieties) 
Thunbergia (Vine) 
Torenia (for pot plants) 
Verbena 
Vinca Rosea (plants) 
Zinnia (for cutting inside) 
Sown in February Benching Blooming Culture 
Marigolds April 1 May 15 
Primula 
Stocks 
Sweet Peas 
April 
April 
February 
October Do not use peat. 
June Grow below 50°. 
May-June 
SEEDS TO SOW IN MARCH 
Aloe Variegata (for pots) 
Alyssum 
Antirrhinum (for plants) 
Asparagus Plumosus 
Asparagus Sprengeri 
Asters (for forcing) 
Calendula 
Cardinal Climber 
Clarkia (for cutting) 
Celosia (Dwarf for combinations) 
Centaurea Cyanus outside) 
Dahlia Unwins 
Delphinium 
Dimorphotheca (for plants) 
Dracaena 
Gomphrena (Combination pots) 
Grevillea Robusta (Filler) 
Gypsophila (A) 
Helichrysum 
Ipomea Clarks Early Heavenly Blue. 
Larkspur (outside) 
Lupinus 
Marigolds 
Mesembryanthemum (pots) 
Nasturtiums 
Petunias 
Phlox (combinations) 
Primula Obconica 
Primula Sinensis 
Salpiglossis 
Salvia 
Scabiosa 
Solanum 
Statice Sinuata 
Sweet Peas (outside) 
Tithonia (Early Elowering) 
Venidium (plants) 
Verbena 
Zinnia (for cutting inside) 
Sown in March 
Antirrhinum 
Asters 
Primula 
Zinnias 
Benching 
May 15 
May 15 
May 
April 
Blooming Culture 
July & later 
July Do not pinch. 
Dec. 25 Do not use peat. 
May 20-June 
SEEDS TO SOW IN APRIL 
Asparagus Sprengeri 
Asparagus Plumosus Nanus 
Asters 
Balsam Bush var. 
Calendula 
Celosia 
Centaurea Annual Sorts 
Cosmos 
Delphinium (P) 
Dianthus Annual Pinks 
Euphorbia Variegata (for cutting filler) 
Gaillardia (A) 
Gypsophila (A) 
Ipomea Heavenly Blue (Clarks early) 
Lupinus (A) 
Marigolds 
Nasturtiums 
Nicotiana 
Primula Obconica 
Primula Sinensis 
Saponaria "Pink Gypsophila" 
Scabiosa 
Statice Sinuata 
Strawflower Helichrysum 
Tithonia (Early Flowering) 
Zinnia 
Sown in April 
Annual Gypsophila 
Asters (late April) 
Lupinus 
Primula 
Zinnias 15 th 
Benching 
Flatted May 15 
June 1 
April 
June 
Late April 
Blooming 
June-July 
July 
May 30 
Jan.-Feb. 
June 1-June 10 
Culture 
Do not use peat. 
SEEDS TO 
Antirrhinum Ghse. var. 
Asparagus Plumosus 
Asparagus Sprengeri 
Calendula (outside for cut) 
Campanula medium sorts (B) 
Delphinium (P) 
Digitalis (B) 
Exacum (pots and combinations for 
Fall on) 
Sown in May Benching 
Primula Obconica July 
Zinnias Early May 
SOW IN MAY 
Forget-Me-Not (for Jan. flwg.) 
Gourds 
Gypsophila (A) (for cutting) 
Lupinus Annual (outside) 
Primula Malacoides 
Primula Obconica 
Scabiosa (outside for cutting) 
Zinnias (outside for cutting) 
Blooming Culture 
Jan. & later 
June 10-20 
SEEDS TO SOW IN JUNE 
Achillea (P) 
Alyssum Saxatile (P) 
Anthemis (P) 
Antirrhinum (Greenhouse var.) 
Aquilegia 
Arabis (P) 
Asparagus Plumosus 
Asparagus Sprengeri 
Asters (P) 
Aubrietia (P) 
Begonias (for Xmas plants) 
Calceolaria 
Campanula Calycanthema (B) 
Candytuft 
Carnation (P) 
Cineraria 
Coreopsis (P) 
Cyclamen 
Centaurea (P) 
Daisy Shasta (P) Single & Double 
Delphinium (P) 
Dianthus Barbatus (B) 
Digitalis (B) 
Doronicum (P) 
Dracaena Indivisa 
Gloxinia 
Gaillarda(P) 
Gypsophila (for cutting) (A) 
Helenium (P) 
Helianthemum (P) 
Heuchera (P) 
Lunaria (P) 
Lupinus (P) 
Lychnis (P) 
Matricaria (P) 
Primula Chinese 
Primula Malacoides 
Primula Obconica 
Pyrethrum (P) 
Scabiosa (P) 
Statice (P) 
Sweet Peas (early Flwg.) 
Viola Cornuta (B) 
Wallflower 
Sown in June 
Antirrhinum 
Cinerarias 
Sweet Peas 
Benching 
August 
August 
June 
Blooming 
Dec. 
Early Jan. on 
Sept. & Dec. 
Culture 
Pinch to 3 or 4 sets of 
leaves , no higher to 
avoid spindliness. 
Do not pinch. 
Run rows N. & S. for 
winter blooming. 
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