In addition to beauty, one of the qualities I value in flowering plants is a long blooming season. As the year winds down, I thought I would share the top ten bloomers in my yard. (Yes, I actually keep a spreadsheet that calculates the number of days between the first and last flowering date!)
So there you have it! I'm eager to see if any new plants that I grow next year will crack the top ten!
- Helianthus. Only two annuals cracked the top ten, and the simple sunflower was one of them. The variety that grows in the veggie garden self-seeds, and I think this gives it a better head start than the ones I plant manually. For whatever reason, I was enjoying its sunny blooms from late June until mid-September (85 days).
- Echinacea purpurea. I'm fairly sure that 'Magnus' started before 'White Swan' and 'Rubinstern', but 'Magnus' and 'Rubinstern' look so similar that I'm not sure which ended first. In any case, I had echinacea from late May until late August (91 days). In addition to being long-lasting in the garden, they also last remarkably long as cut flowers.
- Lonicera 'Graham Thomas'. I officially recorded 'Graham Thomas' as having bloomed only from late May to late August (94 days), but honestly, even after that, I occasionally saw a stray flower or two. This past summer, I saw a bicolor lonicera that I would love to have, and I'll see if it's as prolific as 'Graham Thomas'.
- Hibiscus trionum. Some bloggers have written that this annual is a noxious weed (it self-seeds like crazy); others have said that it's hard to catch it blooming. But I fortuitiously put it in a spot where it has natural boundaries and can't spread too much, and I can't complain of its being too shy. I regularly had flowers from late June until late September (97 days), and the plant itself stayed green until late November. The foliage isn't spectacular, but I do like the flowers.
- Buddleia. We have nine of these large plants, which put out hundreds—maybe even thousands—of flowers between late June and late October (123 days), much to the delight of the butterflies. There are way too many blooms to keep up with deadheading, and besides, the spent flowers provide some winter interest and possibly seeds for the birds. We cut the whole shrub back in the spring, and that will have to suffice for garden tidiness.
- Platycodon grandiflorus. I think that regular deadheading is what kept my platycodon flowering for so long. I had thought that, after starting in mid-June, it was done in September, but then after a thorough deadheading, it turned around and put out another four weeks of flowers, gracing the garden until the end of October (127 days).
- Clematis 'Arabella'. This was the surprise of the season. 'Arabella' got bady eaten the first year I planted it, and didn't seem to do much of anything the second year, but it must have been developing a phenomenal root system, because what a performance this year! 'Arabella' doesn't put out any tendrils to help it climb, so it needs training and support (it barely got four feet high this year), but it bloomed continuously from mid-May to mid-October (147 days).
- Roses. I almost didn't include roses in this list because they don't bloom continuously—they go for a few weeks, stop for a few weeks, on and off throughout the spring, summer, and fall. But since about a dozen of my roses do manage to bloom for more than 100 days, with three going more than 170, I really couldn't slight them. 'Iceberg', 'Blanc Doublet de Coubert', and 'Abraham Darby' are the standouts in this category. ('Iceberg' actually lasted slightly longer than my #2 plant, but I decided to average the roses as a category. Besides, 'Iceberg' is in such a sheltered spot that anything is going to bloom longer there.)
- Geranium 'Rozanne'. This amazing plant started flowering on May 28 this year, and is still going! More than 180 days of non-stop, trouble-free flowers! Gotta love it!
- Daphne 'Beulah'. I always hesitate to trumpet the virtues of this plant, because it has such a reputation for fickleness, but I love our Daphne! Beautiful variegated leaves, dainty bouquets of the most fragrant white flowers that last from early April until, well, more than 200 days and counting—I don't know what more I could ask of a plant. Daphne is always number one with me.
So there you have it! I'm eager to see if any new plants that I grow next year will crack the top ten!

