I am lucky as I find the seedlings growing all over my garden. I leave them where they are for 2 yrs before moving them to where I want them to grow. They pop up everywhere, amongst the veg. etc. After 2 yrs. they are nice strong plants, ready to flower, no special care needed. I cut mine down to half their height in the autumn before the gales and adverse weather comes in, they do suffer from wind rock. By the number of seedlings in your pic. you will have a positive forest of viburnum as they can grow to 6 ft tall and 2/3 ft in spread. I saw a local garden border last year planted full of bonariensis mixed with cosmos. Looked brilliant, I couldn't see if they had something else growing at ground level as they were behind a wall.
I will be planting them amongst Mexican feather grass, cosmos and Globe thistles and a couple of salvias and some cone flowers. New experiment border bed. Dug it out over winter. Added a load of 3 year horse manure a farmer gladly give me as the soil is crap. Typical new build gardens. Full of rubbish.
I agree with Debs, I have tried so hard growing both Verbena B and Verbena Rigida from seed but despite all my other flowers germinating successfully, the Verbena stubbornly refuses. You probably know this already but once they're in situ they like free draining soil - I found them much harder to grow in my previous garden of heavy clay. Where I am now I had needed to order a load of low fertility soil for a particular area of my garden - the kind you would use for a wildflower meadow (which is basically sand with a bit of soil mixed in). The Verbena absolutely thrive in that part of the garden, they self seed prolifically all year long - last year I probably dug up and repotted easily 100 seedlings which I'm going to replant/pass on, they were like weeds! In the end I figured if they self seed so easily I would give up growing from seed myself. Good luck!
I'm afraid it does depend on where you live @gilla.walmsley. They really don't self seed very easily up here. Too cold and wet over autumn and winter As @Loxley says, it can be cheaper to buy a single plant and do cuttings. For sowing, it's also much easier just to wait until conditions are more favourable, and then sow outside, in pots. They grow on quite readily then, can be planted out, and although you may not have large plants, they'll be good for the following year [if they manage winter] and will at least provide cutting material to over winter as back up. Saves all the potting on and finding room for them all if they germinate well.
It's a place where beautiful isn't enough of a word....
I live in west central Scotland - not where that photo is...
Yes interestingly they never self seeded in my previous garden, or in the section of my garden now that doesn't have the low fertility soil. They just seem to love that sand! I've moved all my seedlings into my new greenhouse for the winter as I heard they can be tender, although in the south east I've never had them die over winter. As you rightly say, very much depends on where you live for everything!
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You'll get the hang of it once you've done it enough
We're both saying the same thing @Pete.8
I live in west central Scotland - not where that photo is...
Great minds.... @Fairygirl 😁
Billericay - Essex
Knowledge is knowing that a tomato is a fruit.
Wisdom is not putting it in a fruit salad.
Yeh - I'll go for the former
I live in west central Scotland - not where that photo is...
By the number of seedlings in your pic. you will have a positive forest of viburnum as they can grow to 6 ft tall and 2/3 ft in spread. I saw a local garden border last year planted full of bonariensis mixed with cosmos. Looked brilliant, I couldn't see if they had something else growing at ground level as they were behind a wall.
Personally I would buy a plant when they're available in spring, and take cuttings from it. They are so easy from cuttings.
As @Loxley says, it can be cheaper to buy a single plant and do cuttings. For sowing, it's also much easier just to wait until conditions are more favourable, and then sow outside, in pots. They grow on quite readily then, can be planted out, and although you may not have large plants, they'll be good for the following year [if they manage winter] and will at least provide cutting material to over winter as back up.
Saves all the potting on and finding room for them all if they germinate well.
I live in west central Scotland - not where that photo is...