Planting depth for Lycoris
Nicholas plummer via pbs (Thu, 15 Oct 2020 08:23:52 PDT)
I'm reassured to hear that even at Plant Delights, some Lycoris bloom
sporadically. In my garden, about 45 miles northwest of PDN, L radiata in
all its forms is by far the most reliable Lycoris. No matter what the
winter conditions were, I can be sure that almost every clump of bulbs will
flower every year. All the other hybrids and species are more iffy. This
year, my spring-foliage plants made a particularly poor showing, and I am
wondering if the problem was the very mild winter of 2019/2020. Do the
spring foliage plants need a colder winter to set buds?
Nick Plummer
North Carolina, Zone 7
https://sweetgumandpines.wordpress.com/
On Wed, Oct 14, 2020 at 8:37 PM Tony Avent via pbs <
pbs@lists.pacificbulbsociety.net> wrote:
Hi Jim;
In our research, it appears that the key is for the fall-leaved species to
have adequate time for the foliage to grow and feed the bulbs before first
frost, so the earlier the foliage emerges from the soil, the better. We
don't find that planting depth is the issue, but instead parentage, and
then clonal selection. Deeper planting actually causes the foliage to
emerge later, which makes the plants less likely to flower since the
foliage doesn't make enough food before being damaged by winter cold
temperatures.
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