Storing & using grass seed

[davek]

Can anyone tell me please if grass seed 'goes off' over time, as I tried to repair patches with last years box of Levingtons Evergreen seed without success, so bought another, but this didn't take either.
I eventually bought a sealable pack from B&Q and this worked.
Was I just unlucky ?, maybe the second box of seed had been on the shelves for a while ?, but none of the boxes show a 'use by' date or storage advice.
Do other people store it for a while and use it later, does it keep longer in an air-tight box ?
Any help would be appreciated.

[gardening_guru]

Hello,

Yes, the viability of grass seed does decrease over time. I would suggest that it is always best to use grass seed in the same year that it is purchased. It would be possbile to use it after a year, if it has been stored in a cool, dry area.

[SFrost]

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[jtay123]

Would agree with gardening_guru’s advice, and little rule of thumb is for grass seed stored overwinter is to increase the sowing rate by 25% this should take care of the dud seeds. But as you have mentioned an air tight box would help as long as the seed was dry when sealed.

This site has some good lawn care pages and at least gives full details on their seed mixes http://www.lawngrassseed.co.uk/

[naomikaka]

With artificial grass, your lawn will never be seeded.

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