Matt Mattus
Sat, 05 Jun 2010 13:50:21 PDT
This subject comes up so often, but out dozen or so cultivars of Agapanthus,
never bloomed well until we build our cold greenhouse, where they get moved
each autumn before heavy frost. Inside, the temperatures on the foundation
where  the tubs are kept, reach near 0 C or 32 Degrees F. In spring, they
are relocated outside in mid-May, and all bloom at exactly the same time,
near July 1.
I have noticed that the quantity of buds decreases as pots become full, and
on the years that I divide the large tubs, there are a fewer flower stems,
which I assume is due to the shock of having their root ball sliced into
It is the following year when I get dozens of stems, and the pot is still
not full of roots yet.

The same goes for Clivia. Our collection of Cliva ( about 200 plants from
Nakamura in Japan) used to fuss and bloom off schedule until we moved them
all into the cold greenhouse. In there, they never go dry, rather, they
respond I believe to temperature and day length ( much like me). Now, they
all bloom at exactly the same time, which seems to change each year, but
they all bloom together. Since they are under the benches they get watered
all winter, so it's not about being dry as much as temperature and light
changes, I believe.
The Agapanthus, seem to react in very much the same way, except with blooms
during the summer. Temperature and day length factors in to the 'blooming
equation' clearly.

Matt Mattus
Worcester, MA
Zone 5/5b

On 6/5/10 10:14 AM, "Linda Foulis" <> wrote:

> Good morning all,
> I have Agapanthus africanus albidus which I started from seed back in 2005.
> It has only bloomed once, if I remember correctly back about 2007 or so.  It
> is quite
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