Expert: Long Island Gardener - 5/29/2007

Question
QUESTION: How deep should stargzer bulbs be planted in what type of soil??

ANSWER: Basic rule of thumb for all bulbs: Plant 3 times the depth of the bulb.  That's the easy part.

Harder is the soil.  They need absolutely PERFECT drainage.  That means if you have Clay soil, it needs serious correcting.  And I don't mean you should add Sand.  Let me know what soil you're dealing with, and I'll tell you what it needs to be Lily-friendly.



---------- FOLLOW-UP ----------

QUESTION: I'm growing them in pots. Using Miracle grow potting soil but added small perlite to the mix for added drainage.

What would be the recommended soil if you could mix it yourself?

Answer
Stargazer is an Oriental Lily hybrid.  It grows best at a pH of  5.5 to 6.5.  Pine needles and humus from the base of a conifer, decomposed deciduous leaves, shredded weeds and grass, compost from your yard, mixed into basic garden soil will all lower the pH and achieve the soil your Lily likes.  A dose of high Clay soil and a dose of sand will make it even better.  A handful of Bone Meal helps build strong roots and flowers.

Miracle Gro is made by Scotts now.  It is fast food for plants.  If it has too much Nitrogen, you'll get leaves and no flowers.  Too much Phosphorous, too little Nitrogen, and you won't have enough energy to do anything.  Perlite is helpful; good move.

Depth is important for Oriental Lilies.  They need a MINIMUM of 6 inches underground -- these plants have tall, heavy stems and extend roots from the side of their stems, so they can use some extra soil for support.  In a strong wind, they'll tip over without extensive roots.

And of course these bulbs MUST have full sun for the better part of their day.

Any more questions?