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on all Seeds
for 3 years 

Handing on 

our Heritage

Wild Native
seed, plants 
seed mixtures, 
25 years+

Seed Triggers

   Genetic diversity:  The Seed trigger

The seed trigger guarantees that the seed will germinate when conditions are correct and not germinate (as with cultivated species) all at the same time.
A seed trigger aids wildflowers to persist for longer and adapt to local site conditions.

Seed triggers benefit the local wildlife which times its breeding operations around the natural calendar, just as the plant does. However it does mean that some, but not all of the seeds and species will not germinate in the first season. Thus insuring continuity of the flower species.

It is very important to consider seed triggers as they allow seeds to germinate when conditions are best, often many years after they are sown. As there are thousands of seeds in a gram, and most will germinate when conditions are correct as soon after sowing, this won't effect a typical seed mixture.

Germination due to seed trigger on typical wildflower species:

Germination time after sowing

Percentage of seed that may germinate
6 weeks 60%
6 months 20%
12 months 10%
2 years 5%
5 years 3%
10 years 1%
>15 years <1%

Where a species fails in the early years, but where the meadow is managed correctly, the seed trigger will allow that species to re-establish when conditions are best. Its another great reason to 'Gap create' in a wildflower meadow,

See also Seed Treatments


Technical index: The following link is a real time alphabetical list of technical pages in this web.

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Return to Folder/Section: Index - Technical Section. includes the Conservation section, Mulching and advice on certain weeds, phytosanitary.


Sandro's Famous Wildflower Seeds - Handing On Our Heritage

Hand picked quality perennials    Great Irish Horticulture 

Mr. Sandro Cafolla t/a   Design By Nature (Ire) 

Monavea, Carlow, Ireland. Eircode R93 T289

DBN is a Department of Agriculture, Food and the Marine, (DAFM) :

Registered Native Sourced Irish Wildflower Seed Grower, Harvester, 

Supplier, Processor, Mixer and Packer DAFM Registered No: IECS152

Vat No : IE 3656298P | Business Reg: 109182

EU Plant Health Pass: EUPP/IRL/DAFF/2684.

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