向日葵種植貼士**(英文)**

2009-03-21 2:48 am
6個就OK


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好似咁

回答 (2)

2009-03-21 2:11 pm
✔ 最佳答案

Here are some basics on growing sunflowers:

.Plant them in full sun.

.Plant seeds 1 inch deep and 6 inches apart. Water well after planting.

.Seedlings usually germinate within a week or two and take 80-90 days to reach maturity.

.For taller plants that flower earlier, start them in 4 inch peat pots indoors.

.Seedlings are usually thinned to 12-18 inches apart, but can be plants more closely together in containers.

.Russian Giants, Kong and Mammoth varieties grow as tall as 15 feet and have flower heads as large as 20" in diameter. You'll need a pot at least 15" inches deep and 15" in diameter (or larger) to grow these giants.

.Sunflower roots grow deep and spread wide so make sure you use a large enough container.

.Tall plants may need staking.

.Keep the soil in your containers moist and fertilize them with a 1/2 strength organic liquid fertilizer every two weeks.

.Sunflowers need lots of water (plants 6 feet tall can consume 8 gallons per week), but over-watering them can cause deformed seed heads. Use well-drained soil and keep the soil in your containers evenly moist. Water seedling deeply once per week for the first month so they develop deep roots. After that, water your sunflowers lightly every day.




Some growing tips:

.Try soaking the sunflower seeds in warm water the night before you plant them.

.Fertilize the plants with some old coffee grounds once every couple of weeks, it makes them grew and bloomed beautifully! Just sprinkle the grounds around the base of the plant and water.

.It helps also to take off any foliage that is wilting or being eaten by bugs. Of course deadhead those plants to get blooms throughout fall!

2009-03-21 2:53 am
你可以去YAHOO搵資料!!!


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