grow 1 to 6 feet tall with bloom that last only one daylight , daylilies(Hemerocallis spp . ) flaunt flowers 1 1/2 to 8 inches across where they are perennial , U.S. Department of Agriculture plant hardiness zones varying from 4 through 11 . gardener in southern U.S. states , such as Florida , can sow daylily seeds by early August and transfer the seedlings into the land by tardy September . If the winter is mild , those plants may grow quickly enough to produce flowers the watch spring or summertime . In the northward , however , most daylily seedling wo n’t bloom until they are at least 2 year old .
Choose Daylily Seeds
Daylilies grown from the seeds of hybrid cultivar may produce flowers that variegate in shape and possibly even in gloss from those of their parent industrial plant . On the other hired man , coinage daylily such as lemon daylily ( Hemerocallis lilioasphodelus , USDA zone 5 through 9 ) grown from come can be like their parent plant if they are n’t grow near other daylilies with which they may cross .
Harvest Seeds
Round or oval , three - valve , unripe seedpods seem at the top of daylily stems after the flower fade . Those pod turn browned and begin to crack open when the seeds inside them are mature , commonly about 50 days after the flowers fade .
The ripe seed should be glossy fateful , more or less crisp - sounding , round or oval and about 1/4 in long . Spread them on paper towels , and permit them to dry for one hebdomad .
After drying your daylily semen , place them inside a zip - character plastic bag . stack away the dried seeds of deciduous day lily — those that lose their leaves for winter — inside a refrigerator . Seeds of evergreen plant day lily do n’t call for cold temperatures , or stratification .
Sow Seeds
If you live in the South , withdraw the seeds from the refrigerator after six weeks , and seed them in former summer . If you are in the North , allow the seeds to continue cool down until early bound , about 10 weeks before your location ’s last average annual spring Robert Frost appointment . In either case , after you remove the seeds from the refrigerator , surcharge them overnight in a atomic number 1 peroxide solution to pop fungi — adding 1 tablespoon of hydrogen hydrogen peroxide to 1 dry quart of water , along with 1/4 teaspoonful of dish detergent to allow the shining seed to absorb liquid promptly .
The next dayspring , drain the seeds by pouring them into a strainer held over a sink , and gargle them under water from the tap . Fill a container , which has bottom drain holes , to within 1 column inch of its flange with a moist and sterile seed - sowing mix . After space the seed 1 column inch aside on the control surface of that commixture , cover them with 1/4 column inch of dampish grit .
Southern gardener can then set the container in a partially shaded position outdoors , with the container enclosed in a plastic dish . Northern gardener should brood the container with moldable wrap and position it indoors on a sunny windowsill or under a workshop light time to run for about 15 hour per day , preferably in a elbow room with a temperature of 55 to 65 degree Fahrenheit . If the intermixture and sand are kept damp , the seeded player may commence to germinate within seven to 10 days , after which their moldable bag or wrap can be removed .
Grow Seedlings
Keep the mix moistness , and when the seedlings each have two leaf , lead off to feed them once every two weeks with a one - half - persuasiveness works food for thought , using about 1/4 teaspoonful of lechatelierite per 1 congius of water for a chemical 24 - 8 - 16 type plant life food or 2 tablespoons of emulsion per 1 gal of piddle for an constitutive 3 - 1 - 1 type plant life food . When the daylilies are 1 calendar month old , you’re able to replicate the amounts per 1 gallon of water to make full - strength fertilizer .
Once the plants reach 6 inch in tiptop , graft them into your garden — in former autumn in some southerly states , late autumn or early leaping in especially hot and humid area or after the last ordinary one-year give frost date in northern zone . Choose a status in copious and well - drain soil with a pH level of 6.0 to 6.5 , and insure the plants will receive at least six hours of sun per daylight and 1 inch of water per week . Plant them at the same soil deepness at which they grew in their grass and 18 to 24 inches apart .
