|'Red' is an heirloom variety characterized by deep red stalks and dark green leaves. The stalks hold their color on cooking, and have an intense flavor unlike many of the watery garnishes generally available today.
Celery is a biennial generally grown as an annual. It requires deep, well drained soil with plenty of organic matter and a pH between 6.5 and 7.5.
Celery seed is notorious for slow germination, and if the ground is too warm, it may never come up at all. Aim for a soil temperature of about 70 Fahrenheit for best results, and plant indoors. Seeds require light to germinate.
When seedlings have 5 or 6 leaves, harden them off and transplant to their permanent growing site, about 4 inches deep. If your variety is not self-blanching, plant seedlings in a 1 foot deep trench, which gradually is filled in as the celery grows, preventing it from greening and becoming bitter.
Celery is a very thirsty plant, and must have a strong continuous supply of water. Mid-season fertilization will also help. Be on the lookout for slugs, and place beer traps if they become a problem. Incecticidal soap can discourage aphids.