Don’t Ignore Your Shasta Daisies in May – These 4 Simple Jobs Lead to Bigger, Better Blooms
A few simple jobs now – from tidying tired growth to dividing overcrowded clumps – will keep Shasta daisies healthy, upright, and covered in flowers all summer long
Who remembers making daisy chains as a child? I certainly do – and it feels like a different lifetime now. I can still picture the clump of Shasta daisy my mom grew in the border, always a little too enthusiastic, leaning over the lavender in front like it had plans of its own. And honestly, it probably did.
There’s something about growing Shasta daisies – a childhood favorite perennial – that is incredibly pleasing. That simple, open face feels oddly familiar – almost human. It’s why so many of us are still drawn to them in the garden without really thinking about it. And when people ask me about the best Shasta daisies, I always end up coming back to the same answer: the classic, reliable forms that just get on with it, year after year, without fuss.
So if you’re wondering what to do with Shasta daisies in May, this is really the moment where everything starts to matter – but in a quiet, unshowy way.
1. Tidy Up
The first thing I usually do in May is tidy up my Shasta daisy plants – and the surrounding area. I’ll either reach for my tried-and-tested Fiskars Pruning Shears or the Ultra Sharp Japanese Steel Pruning Shears, both from Amazon, both of which make the job quick and easy.
When it comes to cutting back Shasta Daisies, I always recommend removing anything that looks damaged, tired, or left over from winter. It’s a pretty simple task and shouldn’t take long at all, depending on the size of your garden.
In just a few weeks, you’ll start to see fresh shoots pushing through, with new growth taking over and everything opening up properly instead of being hidden under last year’s mess.
2. Keep An Eye On Older Clumps
If you’ve had Shasta daisy growing in the same spot for a while, you’ll probably notice what I mean when I say they start to lose their shape a bit. They get crowded, the centre weakens, and flowering just isn’t quite as generous as it used to be.
May is usually when I make the call – leave them be for another year, or lift and divide them. And yes, it can feel like a bit of a disruption, but it really does bring them back to life. I take the healthiest outer sections, replant them, and within a season or two they’re back to being full, upright, and far more reliable again.
3. Feed, But Don’t Push
I’ve learned over the years that Shasta daisies are much happier with less than more when it comes to feeding. When I fertilize Shasta daisy plants in May, I stick to a light, balanced feed and leave it at that.
I often to use the Miracle-Gro Water Soluble Bloom Booster Flower Food Fertilizer from Amazon for the majority of my garden plants.
At this stage, you’re just helping the plant grow steadily and stay strong, not trying to push it into overdrive. Too much feed usually leads to lots of soft leafy growth that looks impressive for a while, but then flops around once the flowers start appearing.
4. Give Them Room To Flourish
One thing I’ve noticed over the years is that Shasta daisy will tell you pretty quickly when it’s running out of space. The stems start leaning towards the light, plants flop into each other, and the whole clump can end up looking a bit chaotic by midsummer.
If yours are getting crowded, it’s worth thinning them out or adding support early while the growth is still manageable. I’ve learned it’s much easier to guide them now than try to rescue a collapsed border later in the season.
Shop Shasta Daisy Care for May
I always come back to Shasta daisy ‘Alaska’ – an heirloom variety that’s still one of the very best. For months, it’s covered in crisp white blooms with soft yellow centres set against rich green foliage, bringing that classic cottage-garden feel to any border. The flowers last beautifully in a vase, too. If you’re planting Shasta daisies this year, this is the one I’d choose every time.
I’ve always thought a good pot makes all the difference, and the Ceramic Modern Outdoor Planter from Threshold™ does it well. The glazed ceramic finish keeps things modern, while the scalloped rim adds a subtle decorative touch. With a drainage hole built in, it’s practical too. I’d place it by an entryway or patio to instantly lift whatever you plant inside.
The Corona Long Straight Snip Pruners are a go-to for clean, precise cuts – perfect for deadheading, trimming, and light pruning. Made from corrosion-resistant stainless steel with an easy leather strap lock, they’re built to last and simple to keep clean. Even better, they’re 25% off this weekend only for Memorial Day, so it’s a good time to grab a pair if you need an upgrade.
A lot of what you do for Shasta daisy in May is fairly quiet work. Nothing dramatic, nothing especially complicated – just small jobs that make a real difference later on. A bit of tidying, a bit of restraint with feeding, and making sure plants have enough space to grow properly.
Then summer arrives and, almost without you noticing, they start doing what they do best. Suddenly, there are those bright white blooms everywhere, spilling slightly into pathways and softening the edges of borders.
For me personally, they always bring back that feeling of childhood summers and wild 'messy' gardens in the best possible way.
