Marianne West wrote:Does anybody have Good King Henry Seeds? Also known as Chenopodium bonus henricus.
Good King Henry is also erratic to germinate. They usually take time, about 2 months, and sometimes when you already gave up, you will notice the seedlings coming up after re-digging the soil.
Like many chenopodiums, seeds seems to need initially darkness followed by light and some temperature cycles.
Scientific studies show that chenopodium species often break their dormancy, by cycles in light and darkness, temperature, humidity and dried soil, and nitrogen variations. So, I guess you
should try to simulate those changes.
I sown a few dozen seeds. I only managed to germinate a few couple of seeds (during summertime) after submitting the seeds to pre-chill for 3 weeks and alternating humid and dried soil, and cycles between indoors and outdoors, and ocasionally stirring the soil. Seeds under no change did not germinate at all. This is very different than amaranth and quinoas, which usually germinate much better.
When they do germinate, I noticed they were very sensitive to
water variations if its hot indoors, they seem to grow better if soil is cooler. Only one seedling survived and this is the one I have been struggling to keep it alive during this dark winter in Iceland (indoors with artificial light). Chenopodiums seem not to enjoy artificial lightning and prefer strong direct sunlight (probably because they have the so-called C4 metabolism). Good king henry also prefers fertile moist soil, and very sensitive to transplantation.
Our projects:
in Portugal, sheltered terraces facing eastwards, high water table, uphill original forest of pines, oaks and chestnuts. 2000m2
in Iceland: converted flat lawn, compacted poor soil, cold, windy, humid climate, cold, short summer. 50m2