On 3/25/10 6:18 PM, gloria.p wrote:
Maria wrote:
Hi,
Does anyone know what to do and what to use to revive growth in
daylillies. I have beautiful plants that grow but do not bloom. What
can I do to see them again and have them bloom and rebloom



They probably need to be divided and replanted. Once the clump gets too
big they stop blooming.

gloria p

I have some large, undivided clumps of daylilies that still bloom well.
A few are just now starting to bloom.

Sunset's "Western Garden Book" indicates that they should be divided
once in 3-6 years. Mine are at the 6-year mark. I might divide them
this fall.

Flowering plants need phosphorus in the soil. Since this nutrient does
not dissolve well or leach through the soil, it must be placed where
roots will find it. Take a length of 1/4-inch steel rebar. Poke it
into the ground at least a foot very close to a clump of daylilies and
then remove it. Fill the hole with bone meal or superphosphate. Repeat
around the clump for 3-4 holes.

If you divide a clump, stir a handful of bone meal into the bottom of
the planting hole. Before you set a division, sprinkle a little plain
soil above the portion with the bone meal so that the disturbed roots of
the division are not in direct contact with the bone meal.

Sunset says to divide in the early spring or late fall in my climate.
In cool-summer areas or areas with short growing seasons, divide in the
summer.

--
David E. Ross
Climate: California Mediterranean
Sunset Zone: 21 -- interior Santa Monica Mountains with some ocean
influence (USDA 10a, very close to Sunset Zone 19)
Gardening diary at http://www.rossde.com/garden/diary