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Today's Topics:

1. Re: pbs Digest, Vol 18, Issue 29 (oooOIOooo)
2. Pot sizes for South African oxalis (Mary Sue Ittner)
3. Re: pbs Digest, Vol 18, Issue 29 (Jocelyn Ryan)

----------------------------------------------------------------------

Message: 1
Date: Sat, 25 Aug 2018 19:11:58 +0000
From: oooOIOooo <oooOIOooo@protonmail.ch>
To: pbs@lists.pacificbulbsociety.net
Subject: Re: [pbs] pbs Digest, Vol 18, Issue 29
Message-ID:

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Content-Type: text/plain; charset=UTF-8

Tom John wrote

order of Oxalis & other Winter growers ready to pot up. I had envisioned
potting some of the smaller varieties in 3" [7.5cm] deep bonsai type
pots.... ...recommendations otherwise as to optimal depth and space
preferences for oxalis, the iris groups and others.

Before potting up you need to read how large your plants become, and do
some thinking. Some bulbs are small enough to grow and flower well in
shallow containers, but most are not. Some people are limited by needing to
grow inside a house or glasshouse. I have the luxury of being able to grow
almost all winter-growers outdoors. Other people have very limited space,
and use the smallest containers possible. Some bulbs will flower in
too-small pots, giving flowers smaller than usual, but others will not.

Oxalis can be grown in any container, but you cannot let them dry out in
growth. The bulbs are annual. They produce top growth, succulent roots and
flowers, but do not produce new bulbs until near the end of the growing
season. If you let them dry to the point they exhaust the water in the
storage roots before they have formed new bulbs, they are gone. For this
reason those of us without time to care for the collection every day tend
to use large containers for Oxalis. I use standard "1 gallon" cylindric
nursery containers, which are approximately 6" / 15cm tall and wide. If you
are certain you won't let them dry out, you can grow very attractive tufts
of Oxalis in small bonsai pots.

Some irids, like Moraea spiralis, are miniatures that could flower in tiny
pots. Others, like Chasmanthe and Crocosmia, are the size of small
haystacks. Again, you need to do some reading or asking about specific
plants.

Some bulbs that will tolerate wide, shallow containers would be many small
Albuca species; many Cyrtanthus; Oxalis, taking note of what I wrote above;
most freesias; some moraeas; some diminutive Gladiolus; Eriospermum;
Lachenalia; and small drimias.

Bulbs I wouldn't plant in 3" deep containers include anything growing to
be large; Babiana, which will pull themselves to the bottom of the deepest
container; many Gladiolus; and almost anything in family Amaryllidaceae,
which form long, fleshy roots in profusion. There are a few small
Haemanthus that flower well in 3" deep pots.

I sprout my winter bulb seed in 20 or 32 oz foam cups. They are 6" / 15cm
deep. The 20s are 3" across. I can't recall the diameter of the 32s.

Leo Martin
Phoenix Arizona USA
Zone 9?

Sent from ProtonMail mobile

------------------------------

Message: 2
Date: Sat, 25 Aug 2018 14:38:53 -0700
From: Mary Sue Ittner <msittner@mcn.org>
To: pbs@lists.pacificbulbsociety.net
Subject: [pbs] Pot sizes for South African oxalis
Message-ID: <e471c95a-c9a3-4f4a-5ff1-7ef7f46c70ab@mcn.org>
Content-Type: text/plain; charset=utf-8; format=flowed

Robin Attrill introduced Oxalis when it was the Topic of the Week. His
introduction is well worth reading along with some of the responses to it.

https://pacificbulbsociety.org/pbslist/…

There is excellent information on the wiki Oxalis page. Especially check
out Michael Mace's post:

https://pacificbulbsociety.org/pbslist/…

Michael Vassar also did a Topic of the Week introduction for the IBS
list when I was in charge of it, but I don't seem to have kept what he
wrote and since it was a private list, it wouldn't be available on the
Wayback Machine. I heard Michael Vassar speak a couple of times and one
of the things I remember was that some of the species needed to be
planted deeply if you wanted them to flower. I don't know if anyone else
would remember which ones, but as suggested height is one clue and
probably size of the bulbs as well. You certainly wouldn't plant Oxalis
hirta 'Gothenburg' with its huge bulbs in a 3 inch pot. A few of the
"shy bloomers" started flowering for me once I started growing them in 8
inch deep pots. Also as Mike says in his post referenced above planting
in August here in Northern California has resulted in better flowering
for the fall flowering bulbs. I noticed today that two of the earlier
ones have buds. In Mediterranean climates when everything is brown and
dry this time of year (and burning in a lot of places unfortunately)
these early flowering Oxalis really lift your spirits.

Mary Sue

------------------------------

Message: 3
Date: Sun, 26 Aug 2018 10:43:13 +1000
From: "Jocelyn Ryan" <jocelyn.ryan@bigpond.com>
To: "'Pacific Bulb Society'" <pbs@lists.pacificbulbsociety.net>
Subject: Re: [pbs] pbs Digest, Vol 18, Issue 29
Message-ID: <000001d43cd5$c57affa0$5070fee0$@bigpond.com>
Content-Type: text/plain; charset="us-ascii"

Leo, so much information, that is so helpful, thank you, Jocelyn

-----Original Message-----
From: pbs [mailto:pbs-bounces@lists.pacificbulbsociety.net] On Behalf Of
oooOIOooo via pbs
Sent: Sunday, 26 August 2018 5:12 AM
To: pbs@lists.pacificbulbsociety.net
Cc: oooOIOooo <oooOIOooo@protonmail.ch>
Subject: Re: [pbs] pbs Digest, Vol 18, Issue 29

Tom John wrote

order of Oxalis & other Winter growers ready to pot up. I had envisioned
potting some of the smaller varieties in 3" [7.5cm] deep bonsai type
pots.... ...recommendations otherwise as to optimal depth and space
preferences for oxalis, the iris groups and others.

Before potting up you need to read how large your plants become, and do
some
thinking. Some bulbs are small enough to grow and flower well in shallow
containers, but most are not. Some people are limited by needing to grow
inside a house or glasshouse. I have the luxury of being able to grow
almost
all winter-growers outdoors. Other people have very limited space, and use
the smallest containers possible. Some bulbs will flower in too-small pots,
giving flowers smaller than usual, but others will not.

Oxalis can be grown in any container, but you cannot let them dry out in
growth. The bulbs are annual. They produce top growth, succulent roots and
flowers, but do not produce new bulbs until near the end of the growing
season. If you let them dry to the point they exhaust the water in the
storage roots before they have formed new bulbs, they are gone. For this
reason those of us without time to care for the collection every day tend
to
use large containers for Oxalis. I use standard "1 gallon" cylindric
nursery
containers, which are approximately 6" / 15cm tall and wide. If you are
certain you won't let them dry out, you can grow very attractive tufts of
Oxalis in small bonsai pots.

Some irids, like Moraea spiralis, are miniatures that could flower in tiny
pots. Others, like Chasmanthe and Crocosmia, are the size of small
haystacks. Again, you need to do some reading or asking about specific
plants.

Some bulbs that will tolerate wide, shallow containers would be many small
Albuca species; many Cyrtanthus; Oxalis, taking note of what I wrote above;
most freesias; some moraeas; some diminutive Gladiolus; Eriospermum;
Lachenalia; and small drimias.

Bulbs I wouldn't plant in 3" deep containers include anything growing to be
large; Babiana, which will pull themselves to the bottom of the deepest
container; many Gladiolus; and almost anything in family Amaryllidaceae,
which form long, fleshy roots in profusion. There are a few small
Haemanthus
that flower well in 3" deep pots.

I sprout my winter bulb seed in 20 or 32 oz foam cups. They are 6" / 15cm
deep. The 20s are 3" across. I can't recall the diameter of the 32s.

Leo Martin
Phoenix Arizona USA
Zone 9?

Sent from ProtonMail mobile
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End of pbs Digest, Vol 18, Issue 30
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