Earl Nickel,
Curious Plantsman
As summer blooms start to wind down and the days gradually get shorter, many gardeners tend to step back from their gardens. But actually fall is one of the very best times to be active and planting in the garden. Perennials, be they shrubs or smaller plants, need a bit of time to get their roots firmly established before they fashion a new growth spurt. Getting shrubs, other perennials and early blooming CA native annuals started in the fall offers several advantages. Most importantly, the cooler weather and winter rains provide the perfect conditions for them to get established. Not only will that lead to more successful blooming in the spring or summer but it will often mean that they will bloom earlier than if planted in early spring.
Planting shrubs or other larger perennials in the fall also helps you with your garden layout. Once these ‘foundation’ plants are situated, it is easier, come spring, to plant smaller perennials or annuals in coordination with these shrubs. Fall is also an excellent time to add bark mulch to your planting beds, be that to established plots or to newly planted beds. This mulch will limit the growth of weeds, help to retain moisture and for frost tender shrubs, help to insulate the roots. We can roughly divide fall flower planting into 5 categories – shrubs for sun; shrubs for shade; grasses; ground covers and vines. I’ll give examples of each below.
Shrubs for Sun
There are a great many sun-loving shrubs that benefit from being planted in the fall. Buddlejas are one of my favorites. Known as butterfly bushes, they produce 10-14” long cones densely packed with tiny nectar-rich flowers. You can find four fabulous varieties at Annie’s. These include the compact ‘Ellen’s Blue’ and ‘Hot Raspberry’. These 3-4 high and wide shrubs attract an endless parade of bees, butterflies and hummingbirds, with the former displaying purplish-violet flowers and the latter showcasing vivid magenta blooms.
Davidii ‘White Profusion’ is a full-size bush, 6-8′ H & W. The flowers are a pure white, making this plant a perfect addition to a Moon (white) Garden.
Three other shrubs benefit from being planted in the fall. California lilac (Ceanothus) can be a bit slow to establish so starting this California native evergreen in the fall has its benefits. You’ll find nearly a dozen varieties at Annie’s, with flower colors ranging from the palest lavender (‘Gloire de Versailles’) all the way to vivid purples (Ceanothus ‘Julia Phelps’ or ‘Dark Star’). At home in sun or light shade, these Ceanothus are great foundation shrubs.
If pretty foliage is your goal, Chinese Fringe Flower (Loropetalum chinense ‘Plum Delight’) is a great way to add rich burgundy tones to your garden. Reaching 4′ high and spreading to 7′ wide, this durable evergreen produces unique, pink finger-like flowers in the late spring.
If on the other hand it’s flowers, and in particular exceptionally pretty blue flowers, are your thing, Blue Glory Bower (Clerodendrum ugandense) may be just the ticket for adding something unique to your garden. Sporting the palest blue butterfly-shaped flowers, each with a central vivid blue petal, this African native is quick to establish and equally fast to bloom. Easily reaching 7′ tall, with arching branches, it is a standout in any garden.
You can plant it as decorative meadow grass or use it next to a pond, since it likes some moisture. Where this Carex’s color is subtle, Orange New Zealand Sedge displays vivid coppery-orange foliage in the colder winter months. That color is best seen when this 2′ high grass is planted in sun but even in some shade, it is a great way to add contrasting foliage color to the greens and creams around it.
Shrubs for Shade
Two colorful shrubs for shade lead this group. We have available two species of Angel’s Trumpet (Brugmansia) – the slender golden trumpets of B. sanguinea ‘Inca Princess’ and the fatter, more classic bells of the white blooming B. ‘Wedding Bells.’ The latter’s blooms are an amazing 7” in diameter, with glossy yellow ribs. ‘Inca Priness’ loads up with 7” long cheerful golden blooms and when in full bloom, puts on a dazzling show.
Meanwhile, two white-blooming Hydrangeas offer part sun delights. H. arborescens ‘Annabelle’ produces huge heads (8-12” across!) of pure white flowers in spring. 4’x4′ mature plants are so prolific, you barely see the green foliage.
Dwarf Oakleaf Hydrangea (H. quercifolia ‘Pee Wee’) gets to a similar size, with panicles of alabaster white flowers, offset by highly attractive, oak-shaped mint green leaves. Even when not in bloom, this hydrangea is a standout for a shady to part sun location.
Two outstanding shrubs for shade offer enticing scents. Heliotropium arborescens and H. arborescens ‘Alba’ each produce clusters of heady, vanilla-scented flowers, the former with purple and white flowers and the latter with all white flowers. Smaller shrubs, they each top out at 3’x3′.
Meanwhile, Mock Orange (Philadelphus ‘Belle Etoile’) offers clusters of pure white flowers that smell intoxicatingly of ripe oranges!
Grasses
Fall is an excellent time to start ornamental grasses. Pink Muhly grass sounds like an odd common name but Muhlenbergia capillaris is one the showiest grasses you will ever grow.
Its calling card is its vivid pink seedheads, which completely smother the plant in late summer. Forming an upright 3’x3′ mound of narrow, brownish-green leaves before its flowering, this drought tolerant, durable grass is also a valuable source of seed for local songbirds.
Two other Muhlies are worth exploring – the southwest native M. dubia and M. reverchonii ‘Undaunted.’ The latter features reddish-mauve seedheads and is likewise cold hardy, very drought tolerant and long-lived.
And how about growing the state grass of California?! That would be Purple Needlegrass (Stipa pulchra). Widespread, it forms 18” high clumps whose seedheads start out purple then age to a silvery color. Nodding Needle grass (Stipa cernua) is another durable native that reaches 2′ tall and produces unique ‘bending’ seedheads.
For great foliage color, there’s no beating New Zealand Wind Grass (Stipa arundinacea). Much sought after by west coast gardeners for its golden-ginger blades, it reaches 3-4′ in height. It looks fabulous when massed and equally showy when featured in a container. A real statement plant!
Vines
Vines occupy a particular place in a fall planting scheme as many actually bloom in the autumn. That shouldn’t preclude you from planting them now and one of my favorites is Passion Flower vine (Passiflora). Whether it is an edible type (P. edulis “Frederick’) or one of many ornamentals, this vine produces some of the most unique and colorful flowers in the floral kingdom.
Annie’s selections divide themselves roughly into two groups – those with pronounced filaments (P. actinia, P. ‘Blue Horizon’ and P. loefgrenii x caerulea) and those whose parentage includes P. manicata (‘Susan Brigham’ and ‘Oaklandii’) or P. parritae (‘Cocktail Orange’ and ‘Mission Dolores’).The latter passifloras showcase large orange, coral or red flowers, with few or no filaments. Whichever you choose, the flowers are bold, eye-catching and known to attract butterflies.
Several other vines offer their own treats, be that the fragrant flowers of Pink Jasmine (Jasminum polyanthum ‘Pepita’), the vivid purple flowers of Clematis ‘Polish Spirit’ or the blazing red fall foliage of Roger’s Red grape (Vitis californica x vinifera ‘Roger’s Red).
Ground Covers
While ground covers are often overlooked when it comes to fall planting, they too can benefit from a head start. African daisies (Osteospermum) are a great example, getting a head start on spring blooming when planted in the fall. We have 3 colorful varieties, ‘3D Double Purple’, ‘Compact White’ and ‘Zion Copper Amethyst.’ The 3D Double Purple is noteworthy for its flowers not closing at night, as is the case with most Osteos.
Our California native Blue-eyed grass (Sisyrinchium) particularly benefits from a fall planting, leading to not only an earlier flowering but a more robust one as well. S. hybrid ‘Devon Skies’ not only flaunts the bluest flowers but some of the largest ones in the genus. S. bellum ‘North Coast’ has slightly smaller and more purple blooms while S. californicum offers cheerful yellow flowers.
Lastly, the curiously named Golden Pennywort (Lysimachia nummularia ‘Aurea’) is a fabulous ground cover that can either spread out on level ground or cascade over a low wall. It benefits from a bit of shade and even though it loses a few leaves in winter, it fills out a gloriously gold come spring.
To Conclude
“The beauty of planting shrubs and other perennials in the fall is that you are rewarded with its benefits no matter what climate you live in, which particular plants you add or the plants being of a large size or small. So, time to get out that shovel and get going!”
Availability
Just so everyone knows, some of the Annie’s Annuals plants mentioned here might not be available on the week that you’re reading this blog article. Some of the plant varieties discussed are only available in our retail nursery in Richmond CA. This is generally due to us only being able to grow small crops or the fact that the particular plant does not ship well. A quick look at that plant’s page will let you know if it’s available. If not, just click the Add to Wishlist button and we’ll notify you when that plant is ready to take home.
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