When to start watering dormant bulbs

Jane McGary via pbs pbs@lists.pacificbulbsociety.net
Tue, 30 Aug 2022 17:45:39 PDT
In western Oregon, I start watering dormant bulbs in pots in late 
September to early October, when temperatures drop and rain may arrive. 
However,  my pots are plunged in sand to the rim, which keeps their 
moisture more steady, and I also provide a little humidity in summer by 
just waving the water wand over the plants -- not enough to puddle on 
the surface. Furthermore, my planting mix contains a lot of unwashed 
sand, which is more moisture-retentive than what some people use.

Narcissus species (I don't know about commercial "daffodils") often make 
root growth very quickly in the presence of moisture, and they can't be 
allowed to dry out at that point. I grow many Narcissus species and 
hybrids in the garden, where most of them get some water once a week in 
summer. Some crocus species do not want to dry out in summer (e.g., C. 
banaticus), while others tolerate it well (e.g., C. reticulatus). You 
have to know where they come from.

Elaine, you will be safer to water your bulbs sooner than later. The 
only danger is if you have them in unplunged pots exposed to sunlight, 
because if the bulbs are wet and hot at the same time, they can rot.

Jane McGary, Portland, Oregon, USA


On 8/30/2022 4:50 PM, Elaine J via pbs wrote:
> For last couple years I started watering too late and bulbs didn’t do  > well. > > Any suggestions of when to start up again? > > I have 
crocus and daffodils in pots. I’m in California 9b Sf > peninsula where 
it’s bright, warm and slightly breezy now. Tho no > rain, so low 
humidity. > > -Elaine. _______________________________________________ 
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