seedling reemergence after first dormancy

Jane McGary
Sun, 29 Dec 2013 14:02:08 PST
Gastil wrote,The exception to
>that rule is the Tropaeolum hookerianum which self sowed a dozen
>vigorous sprouts last year, none of which returned.

It is common for these small Tropaeolum species to remain as a 
dormant tuber for a year or more, then recommence growing. Don't give 
up on your seedlings.

Tropaeolum hookerianum subsp. austropurpureum has survived our recent 
severe cold spell (lowest temp here, 17 F) in a roofed but otherwise 
unprotected bed and is growing well. I have only one plant so have 
not obtained seeds from it. T. brachyceras self-sows readily and the 
seedlings return in following years.

Jane McGary
Portland, Oregon, USA

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