GREENHOUSE % 
We shall carry a column each month under 
this heading in which we will list itims of int- 
erest to those having greenhouse space 
Cultural information is preobably most in- 
teresting but we will be pleased to print any 
short articles from our readers on subjects 
of interest from the building and operation of 
the greenhouse to the raising and marketing 
of the plants and flowers grown. Make it 
your column, it’s YOURS. 
DURING THE MONTH OF MAY. 
During May, when everything is in a rush, 
do not neglect the preparation of the field 
soil for your Carnations, Christmas Cherries, 
Vinca stock, etc. These plants for next wint- 
er use in the greenhouse, must be given a 
good start in their outdoor plots and the 
soil should be properly worked before trans- 
planting time comes around. 
Start some Calliopsis and Clarkia. 
Early May is an excellent time to sow some 
Calliopsis and Clarkia seed for flowering in 
flats; they grow quickly and make profitable 
cutflowers. 
If you have flatted plants in the cold frame, 
a little liquid feed in the form of ammonium 
sulphate is recommended. 
Shift any Heliotrope and Lantana plants to 
4” pots at this time and the same is true on 
any Petunias that are to be sold in 4” pots, 
do not delay this shifting after May starts. 
PLANT GLADIOLUS BULBS NOW. 
Start planting Gladiolus bulbs now and 
all the bulbets you will grow this season. If 
the bulbets were mixed with Vermiculite, and 
placed in a burlap sack, which is then soak- 
ed in water till wet and then placed in cool 
place for a week or so before time to plant 
outdoors, you will find you can easily gain 
2-4 weeks in start, resulting in larger 
bulbs this fall. Watch that they do not heat 
while in the sacks. 
HARDY PLANT SALES. 
Hardy plants are always good sellers and 
Pansies, Bellis Daisies, Forget-me-nots, hardy 
Primulas, dwarf Phlox and bedding Violas 
are much in demand. They can be grown 
both in flats or pots. 
Early flowering hardy plants such as Aly- 
ssum saxatile, Arabis, Anemone pulsatiiia, 
can be had in flower, if plants were started 
last summer. They are always good sellers. 
DELPHINIUMS. 
If you started Delphiniums last summer 
and they now are in pots or flats, they 
should be set out at once. They like a 
light soil with perfect drainage, especially 
during the winter months. 
We have a good supply of seed on hand in 
the Pacific Giant Strain and seed can be 
sown now for early plants which can be either 
sold in 4” pots during the summer or they 
can be transplanted in late summer for your 
own cutflowers next year. 
Delphiniums are one of the best commerc- 
cial cutfliwers. 
Give Sempervivums rich soil to get hand- 
some foliage. 
COREOPSIS-CORYDALIS-COSMOS 
COREOPSIS. (koh-ree-OP-sis) Compositae. 
Annual and perennial plantswith yellow, brown or rose flowers, blooming in the sum- 
mer and fall, making ideal cutflowers as well as display in the border. The annual 
kinds are listed under Calliopsis, which see. 
C..LANCEOLATA: Perennials to 3 ft, hardy and grown for cutflowers and border. 
—New Gold. 100% double, rich golden yellow; 18’, ideal for cutting........ CORE-12N. 15¢ 
—Double Sunburst. 115-2 in. ac; golden yellow; comes 80% double............ CORE-12S. 15¢ 
—Mayfield Giant. Large golden yellow fis; larger ray petals... .CORE-12M. 15¢ 
—superba. Large single golden yellow fils; 2-3” ac; 3-4’ tall. ig eee CORE-12B. 15¢ 
-COreOpsism DICNdwADOVe! KINGS iO xe srerecsoeeeraw en roteas say saccanerasedantssscnasssastecears CORE-12X. 15¢ 
—insecta. S. Rhodesia. 4-5 in; golden yellOw;3 ft...............ccesscccccssscsccssesscccceesnsrasesecens CORE-10. 15¢ 
—verticillata. Thread-leaf C. Deep yellow, heads 2” ac; 3 ft; HP... CORE-30. 20¢ 
CORN -- ORNAMENTAL KINDS. 
These ornamental corns are especially nice for children to grow; they are easy and 
the colirs are interesting , besides they can be sold in the fall at a good profit. 
Listed here are those sorts with colored kernals and used for ornamental purposes. 
—Bassett’s Indian Corn...The brightest colored kernals in all colorsg................ CORN-1. 20¢ 
—Strawberry Pop Corn. True red strawberry-shape; dark COlOY........ ccc CORN-2. 20¢ 
COTONEASTER. (koh-toh-ne-AS-ter) Rosaceae. 
_ Temperate zone shrubs, mostly from China, very ornamental, but many are not hardy 
in the far North. They like a sunny position and well drained soil. 
—acuminata. Pinkish fis in clusters; 12 ft; this is Nardy................ccscccssscesssecees COTN-1. 25¢ 
—frigida. Fls white in dense clusters; fr bright red; South only; sereesree COTN-24, 25¢ 
—microphylla. Evergreen, 3 ft, solitary white fis; fr bright red.................... COTN-42. 25¢ 
—rotundifolia. Evergreen, fis white in clusters; fr red; 12 ft. eee COTN-55. 25¢ 
—Cotoneaster Blend. All kinds Offered, MIKE .n i... cccccccccscvscccccsesssorssscsvecossnens COTN-X. 25¢ 
CRATAEGUS. (kra-TEEG-us) HAWTHORN, THORNAPPLE. Rosaceae. 
Fine specimen shrubs and trees,nearly all of which are hardy in the North. They 
come very true from seed which germinates slowly and should be stratified. 
—Crus-galli. Cockspur T. Fls white tinged with red; fr red; 20’; hardy....CRAT-16. 25¢ 
—iniricata. (€:. coccinea) Dark glossy lIvs; fr large scarlet; 15 ft.................. CRAT-35. 25¢ 
CRAWFURDIA. (craw-FUR-de-ah) Gentianaceae. 
Twining plants from the Himalayas and allied to the Gentians, which see for their 
culture. They are not hardy in the North but grow well in California. They are rare 
in American gardens. 
—japonica. FIs dull greenish; fleshy red fr; very ornamental; vine; HHP....CRAW-1. 35¢ 
—speciosa. Fils blue, funnel-shape; the hardiest; vine; HHP........... CRAW-3. 35¢ 
CREMANTHODIUM. § (cre-man-THOD-ee-um. 
== TE ROMPSON pee HLS ae tO = Cll OW we tae aman cl Cores unary sncsuasae none seeefnacsaet camer ocacepsennesesr aneanetes CREM-5. 25¢ 
CREPIS. (KRT-pis) HAWK’S-BTARD. Compositae. 
Flowers are in yellow, red or orange heads, and grown in the border. Light loam soil 
and full sun. 
—glomerata. Fils yellow; black anthers; 6-107 Wigh..in.........cccsscsssseoscerscssscoscsesecses CREP-5. 25¢ 
UI CALTIA, ee Ue 1S etl ee O Tepe Gr ELE: 0 eee re see esnchasatie.veuns Siteaephotetiocasa Sevan susescaseemeaeeeete CREP-7. 40¢ 
CROCUS. (KROH-kus) SAFFRON. §Iridaceae. 
While many species of Crocus are ordinarily purchased as bulbs, a great deal of pleas- 
ure can be had in raising them from seeds, especially in the new hybrids one can grow. 
—Fleischeri. Fls white striped lilac; a rare species for RG... .cceccccessseeseeerees CROC-14. 30¢ 
—speciosus. Fls lilac striped bluish, autumn flowering 
—Tomasinianus. Fls qale reddish blue, spring flowering; naturalizes... 
—Crocus Blend. Mixture of species 
CROTALARIA. (kroh-tah-LAY-re-ah) RATTLE-BOX. Leguminoseae. 
Plants with Sweet Pea-like flowers and swollen pods. Soak seeds in warm water be- 
fore planting. In the North they are greenhouse plants. 
—retusa. Golden Sweet Pea. Pretty, golden yellow fis; TA... eee CROT-12. 20¢ 
CRUCIANELLA. (kroo-shan-EL-ah) CROSSWORT. Rubiaceae. 
Annuals an perennial plants many of which are grown in the rock garden, thriving 
in partial shade. 
—stylosa. Small pink fils; RG; grow as an annual; trailer for dry bank 
CUCUMIS. (KEW-kew-mis) Cucurbilaceae. 
Tender annual vines of which the cucumber and melon belong. C. Melo is the musk- 
melon. They are mainly grown for their edible fruits as well as for ornament. 
—Melo v. Dudain. Pl small; fr size of orange, marbled; highly perfumed..CUCU-4D. 20¢ 
CUPHEA. (KEU-fe-ah) Lathraceae. 
Tropial plants mostly greenhouse grown in the North but pretty annuals for outdoors 
in the South. They are nice plants for boxes and baskets. 
—Mybrids,. butterfly. = viany Colors: |Viery (PTELl yee LA sseserecc-acsctteceteceseeneteses ct: CUP-3B. 15¢ 
= ——Fireriy (ocalititul Drighte scarlet yar LA ce comnccevaseeetedssennccentesedtoc co cineasseeen .CUP-3F. 15¢ 
—ignea. (platycentra) Cigar-Flower. Bedding; fis red, white; 1’; TA.. ..CUP-5. 20¢ 
—Llavea v. miniata Vermilion. Brilliant vermilion fis; 1 ft; TA........... -CUP-8V. 20¢ 
=—CUuphea DLE mes LE OLCLTn CS METER OG ge Peete can desc accsaeroncceecgucvbe cert) sus esses tecvanter vactectrecctorseiasauiad CUP-X. 15¢ 
CURCULIGO. (kur-KEW-lig-oh) Amaryllidaceae. 
Stemless plants, Amaryllis-like, with short thick root stock. They are popular green- 
house foliage plants or outdoors in the South. Require high temperature, plenty of 
moisture and a rich soil. 
—capitulata. Dark green lvs 3 ft. long; palm-like; fine for pots... CURC-l. 30¢ 
CYANANTHUS. (cy-NAN-thus) Campanulaceae. 
Small Himalayan plants, grown in the rock garden. They are related to Codonopsis 
but not climbing, flowering in late summer. Hold over first winter in pots; needs good 
growth first year. 
=1obaltus meOncuOleibe  DeStasiismar sex bile, Gr sel b es ccices.c: |e, aeesessavesitact-o tuevenervadeees CYAN-4. 3046 
PIONEER SEED COMPANY DIMONDALE MICHIGAN 
ene CRUC-6. 203 
