Posts Tagged ‘seed sowing’

Snap to it for snapdragons

June 28th, 2019 | Plant Talk with Graham Rice | 0 Comments

Overwintered antirrhinum for cutting

I grew some tall antirrhinums last year. Many of them I cut for the house, and very pretty they were too. Some I left to do their thing in the garden and, I have to say, they were not dead-headed as diligently as I recommend here!

But the result was that seedlings started to pop up – not many, but enough to notice and enough to decide just to leave them to see what happened. And most of them survived the winter… and grew away in spring… and some were infected by rust disease and some not… and they began flowering in May.

So, I thought to myself, why not deliberately sow them in summer? And then I remembered what I’d said in my book on annuals from over thirty years ago, I recommended that antirrhinums be pulled up and prevented from overwintering as part of an approach to combating rust disease.

Yes, those antirrhinums of mine that overwintered were infected by rust, but not severely. One died, I think, and the rest grew out of it in spring.

The problem with sowing outside in the garden during July or August is finding a sunny place that’s not already occupied. If you have such a spot, sow thinly, thin to about 10-15cm, and transplant alternate seedlings elsewhere in the autumn.

But sowing in large cells is a better bet. You can use the plug trays that your mail order seedlings came in, wash them thoroughly and sow a few seeds in each. Keep them cool and moist, move them into a brighter place when they’ve emerged, thin the seedlings to one or two and plant when their roots start to fill the cells. Choose one of the taller varieties such as ‘Tootsie’ with flowers in pure white and rich pink or medium height varieties such as ‘Night And Day’. I think it’s well worth a try.

Cosmos time – yes, really!

June 14th, 2019 | Plant Talk with Graham Rice | 0 Comments

Cosmos 'Xanthos' and 'Sea Shells'

Well, it’s been raining hasn’t it… The problem is that everything is now growing like mad and spilling out into the spaces I’d set aside to sow cosmos.

Yes, I know. Cosmos are half hardy annuals and they’re often sown under cover in April. But both shorter varieties like ‘Xanthos’ (above left) and taller ones such as ‘Sea Shells’ (above right) do really well sown outside in June, sown outside where they’re going to flower.

The seeds are long and slender and easy to handle, the soil is moist, so all you need to do is draw a drill (a shallow furrow) in the soil with the point of a stick – or even your finger. About half an inch deep is fine and then you can place the seeds an inch apart and then just knock the soil in from the edges to cover the seeds and pat it all down with your hand.

Put a label in at the end of the row and another label or a piece of stick in at the other end, to mark the row and ensure that you don’t sow something else in the same space! The seeds will soon be up, they’ll grow strongly and you can thin them out, in stages, till they’re 15-20cm apart.

The problem is all those floppy plants that the rain has beaten down – in spite of the fact that you supported them (or perhaps because you didn’t!).

Well, they can be rescued, propped up, and space for those cosmos revealed. If you’re fortunate enough to have some flat sprays of hazel twigs, these are ideal for gently raising shoots back into position. But the simple device of two short bamboo canes with a length of string run between can also lift leaning stems back close to vertical. And snipping off any wayward shoots won’t do the plants any harm.

So, wait for a break in the rain, heave those floppy plants out of the way and get some cosmos seed in.

5 Gardening Hacks for Seed Sowing Success [video]

April 24th, 2017 | The flower garden, The vegetable garden | 0 Comments

 Gardening Hacks for Seed Sowing Success

Do you struggle with sowing seeds because you can’t see them and they germinate all bunched up together?  Or maybe they don’t germinate at all?   Well here are five gardening hacks for sowing seed success!

  • Use seed tapes to space out seeds accurately, especially smaller seeds like carrots and lettuce.
  • Mix smaller seeds with fine, dry sand and then sprinkle them for better spacing.
  • Larger seeds or those with a thicker seed coat are likely to grow faster if they are softened or punctured before planting.  Soaking is a great method widely used by sweet pea growers, so try it on your beans!
  • Seeds can often be difficult to see in the soil so you can’t see where you have already sown.  Line your furrows with toilet paper allowing you to see them better before covering over with soil.
  • Encourage seeds that take their time to germinate to grow early before you plant them out by pre-soaking seeds like peppers and tomatoes in wet kitchen paper.  Pop them in the airing cupboard and check regularly until you see signs of germination

Are you a seed sowing superstar that has tips to share with your fellow gardeners? Let us know in the comments below!


December 18th, 2015 | Plant Talk with Graham Rice | 0 Comments

You probably remember that every time I talk about sowing seed of sweet peas, I bash on about Rootrainers. So when I came across this video that the manufacturers have produced, I thought you’d like to see it. (They don’t sell Rootrainers direct to gardeners, but you can order them here.)

Over the years, I’ve found Rootrainers invaluable for raising two groups of plants from seed. Firstly, the Deep Rootrainers, which are 12.5cm/5in deep, are ideal for sweet peas, of course, and also other deep-rooted members of the pea and bean family including perennial sweet peas, runner beans, and climbing French beans (below), broad beans and lab lab beans. I’ve also used them for sweet corn.

Climbing beans getting a start in RootrainersDeep Rootrainers are also good for other vigorous annuals that produce a deep root, like sunflowers, for deep-rooted biennials including Miss Willmott’s Ghost, Eryngium giganteum, and for deep rooted perennials such as echinaceas but especially for hellebores. They’re useful for tree seedlings too.

Rapid Rootrainers are a smaller version, just 7.5cm/3in deep, and are ideal for starting lettuce plants, leeks and brassicas, and for those of us with limited space they can also be used for beetroot, carrots, and onions – in fact whenever you need a small number of almost any vegetable, starting them off in Rapid Rootrainers works well.

The only problems I’ve had have been with courgettes and cucumbers and squashes: they have such big leaves that there’s just not enough space.

The video shows you how to use Rootrainers but don’t forget that you can re-use them again and again so they’re great value. My first ones lasted for years.