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Thoughts on planting out my sunflowers now?

My Russian Giant Sunflower seedlings are about 30-40cm tall already and I’m keen to plant them out rather than pot them on. 
We go away next week and I doubt they’ll last much longer in their current pots. 
Any experience on how they’ll do planted out this time of year?
For reference I stay in Glasgow. 


  • B3B3 Posts: 26,994
    Can you give them to someone to look after for a week?
    I wouldn't even plant them out down here.
    In London. Keen but lazy.
  • FireFire Posts: 18,069
    Sunflowers are hardy but susceptible to slugs and need lots of water. They'll do better outside with sun light.
  • Nanny BeachNanny Beach Posts: 8,669
    Since when have sunflowers ever been hardy
  • AnniDAnniD Posts: 12,159
    edited April 2021
    According to the weatherman at lunchtime, more cold weather to come next weekend 🙄, so l wouldn't plant them out any time soon, sorry.
  • FireFire Posts: 18,069
    edited April 2021
    Ok, I take it back. Apologies. My self-seeding sunflowers come up from early spring. But perhaps that's odd.
  • SuesynSuesyn Posts: 650
    The packet of sunflower seeds that I have says to plant direct in their flowering position in April /May. I'm holding off for a bit until night time temps rise a little (and also because I don't really know where I'm going to squeeze them in). 
  • I have that space issue too @Suesyn :D I'm just refusing to acknowledge it. My sunflowers are getting way too tall but I guess I can't risk the  outdoors yet.
  • B3B3 Posts: 26,994
    My husband likes sunflowers and I don't. I will should have sown them weeks ago and they'd be just about ready to plant out now👺
    In London. Keen but lazy.
  • Thank you for all your input. 
    I’ve going to have a bash at planting some out now and if they die I have plenty of back ups....I’ll let you know how I get on 🌻 
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