How to grow sea holly (Eryngium) from seeds 藍刺芹種子孵法
Best germinate in late fall, second best in early spring.
1.Keep seeds in freezer for one month.
2.Get seeds out from freezer, sow the seeds on the moisten potting soil in a container with lid or cover the container with clear plastic bag to keep the soil moist. Place the container in partial shade, warm location. Check and open for air circulation once a day. Seeds will sprout in about 2 weeks.
2.取出種子直播於盛培養土已澆水的透水小盒,用透明塑膠袋連盒子整個封起. 置半日照溫暖處. 每天檢查+開封透氣. 注意不可過濕. 約2週內發芽.
3.Transplant seedlings to individual pot or in the ground when they have 4-6 leaves. Full sun.
From seeds to flower usually next year will happen, in the worst case, the 3rd year will flower.