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What is the secret to ' Overplanting?'

Posted by pippi21 Zone 6b Silver Sprin (My Page) on
Tue, Oct 4, 11 at 23:51

I would love to learn to overplant so that I have something blooming most of the time. What's the secret to it? How can I mix in annuals around bulbs so it looks like the bulbs are coming up through the annual flowers? Example: Carpet of snow Alyssum or creeping phlox. That is all I could come to my mind at this moment.


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RE: What is the secret to ' Overplanting?'

There isn't really anything to 'learn'. It's a lot more straightforward than you think. Just put your annuals where you want them. Both your examples would cause no problem to a determined daffodil or crocus. Spring bulbs would already be showing by the time you plant out annuals so just avoid breaking them off as you dig. Alternatively, if you are sowing seed just sprinkle it over the bulbs. They'll sort themselves out.


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RE: What is the secret to ' Overplanting?'

My gardens are designed to have waves of blooms from mid-Spring until fall. It is not really a cottage style, because I do try to maintain some spacing. But there is a lot more packed into my gardens than what appears on the surface at any one time.

The first "wave" of blooms is mostly bulbs and a few early blooming shrubs like Forsythia or Purple sand cherry. Some of the later bulbs will blend with early blooming perennials like Dicentra or Columbine. Most spring bulbs or spring ephemerals are going to bloom long before any winter-sown annuals bloom however. You could buy already blooming annuals at the nursery though, but that defeats the purpose of winter-sowing!

It is the dying bulb foliage that I am usually trying to hide by planting the bulbs amongst the emerging perennials or planting annuals amongst the bulbs. I also try to fill in between perennials with annuals and biennials - Cleome, Cosmos, Verbena bonariensis, Digitalis, some herbs like dill and cilantro which make pretty flowers, etc. Sometimes it works great, sometimes not.

I try to take lots of pictures, so I can go back and see what's blooming when, and constantly refine the waves of blooms in the gardens. Takes years, but it's fun fun!

Hope this at least partially addresses your inquiry.


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RE: What is the secret to ' Overplanting?'

I have something in bloom nearly 10 months of the year. Even in the depth of winter, I have some interesting features in my garden. Now everything is practically established. In spring, I plant some annuals hear and there to keep colors going. Then all I do is tidying the garden a bit as the seasons progress.

1. Some shrubs and evergreens for structure & fall & winter interests (Coral Ember Willows, Red-twig Dogwood, miniature evergreens, yucca, American Arborvitae, Betula nigra 'Little King', Physocarpus 'Diablo', Cortinus coggygia,Oakleaf Hydrangia, Hydrangea 'Annabelle', etc.)

2. A LOT of long blooming perennials and/or with fragrance or large, bold structure/texture (Geranium 'Roxanne', large, bold hostas, Ornamental grass, MANY & MANY Clematis, Sedum, etc.)

3. A LOT Of BULBS in between everything. 2 - 3 bulbs were planted in the same hole by layering. They begin to bloom in February and take turn coming up through spring - summer - fall.

4. After planting all of the above, I then scatter leftover seeds everywhere.

Examples of what are currently in bloom or offering interesting features:
- Colchicum
- Fall Crocus
- Feverfew
- Assorted Asters
- Rudbeckia hirta
- Rudbeckia triloba
- Miscanthus sinensis (2 different varieties)
- Several ornamental grass - natives & non natives
- Hydrangea 'Annabelle' (Flower heads are left on the plant all winter)
- Hydrangea grandiflora
- Geranium 'Roxanne' 'New Hampshire Purple'
- Geranium lancastriense
- Roses
- Sedum 'Autumn Joy' (Flower heads are left on the plants all winter long)
- several no name Sedum
- Verbena bonariensis
- Huechera 'Purple Palace'
- Huechera with no name
- Buddleia
- Solidago 'Wichita Mountain'
- Solidago 'Fireworks'
- Petunia
- Chinese forget me not
- Can't remember what else lol


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Succession blooming bulbs

Examples of bulbs for blooming succession:

February - March - April:
- Snowdrops
- Eranthus hyemalis, cilicica
- Iris - miniatures
- Crocus
- Scilla
- Puschkinia
- Chionodoxa
- Muscari
- Narcissi of all sorts - early - mid- late season
- Tulips - early - mid - late season
- ***Bleeding Heart, Mertensia virginica & Helleborus begin to unfurl***

May - June - July - August:
- Late blooming Tulips & Narcissi
- Anemone blanda
- Gladiolus - both hardy & not hardy kinds
- Camassia
- Brodeiea
- Lillium - (June thru August)
- Ornithogalum
- Lycoris squamigera

September:
- Colchicum
- Fall crocus


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Forgot to include Allium

- Allium for May - June blooming


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RE: What is the secret to ' Overplanting?'

These are really wonderful ideas. Continuous blooms is something I've just started trying to work on myself. Thanks for sharing these!


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