Threadleaf coreopsis have the most delicate foliage. The soft, buttery yellow of 'Moonbean' isn't often seen in flowers and is Moonbeam's main attraction. However it can sometimes be short-lived or difficult to keep in the same place. It's not an aggressive grower, but it has a tendency to disappear from the spot you planted it and pop up elsewhere. If that's the case in your garden there are other, more reliable threadleaf coreopsis with less buttery, but still attractive shades of gold.
They are all difficult to deadhead, because of the abundance of their tiny blossoms. The easiest thing to do is to let them bloom their hearts out and then shear the whole plant back by about 1/3. It will take only a couple of weeks to send out new blooms.
Coreopsis verticillata 'Moonbeam' (USDA Zones 4 - 9, 18" x 18", Yellow Repeat Bloomer)
Alternatives
- Coreopsis verticillata 'Zagreb' (USDA Zones 4 - 9, 18" x 18", Yellow Repeat Bloomer)
- Coreopsis verticillata 'Golden Showers' (USDA Zones 4 - 9, 24" x 18", Yellow Repeat Bloomer)