Succession Planting: Summer, Fall Planting For Season-Long Color
by Amanda
Fall offers a second season for adding perennials to your garden.
Many gardeners work long hours in the spring months, feverishly planting a variety of bulbs, wildflowers, and perennials for spectacular summer color. But packing all of your planting into several weeks per year isn’t always the most relaxing — or beneficial to your landscape. Succession planting refers to the simple practice of adding wildflowers, bulbs, perennials, and vegetables to your garden in a staggered timeframe throughout the season, for a long-lasting display of color, harvests that are spread out, and well-timed resources for local wildlife. As you’ll see in the comprehensive list below, planting isn’t just for spring!
Succession Planting In Summer: Annual Wildflowers
If you didn’t get around to planting annual wildflowers in the spring, or want to create a long-lasting display of easy color, you can still plant quick-blooming annuals in the summer months. Depending on your region, you can plant easy-to-grow, quick-blooming annual wildflowers well into July.
Zinnias and Cosmos are quick-blooming annuals great for summer planting.
Some of our Favorite Quick-Blooming Annual Wildflowers For Summer Succession Planting:
When planting wildflowers in the summer months, make sure to regularly water the area until seedlings are at least 6” tall. After this, watering weekly should be enough to supplement regular rainfall.
Succession Planting In Summer: Fall-Flowering Crocus
Although August can sometimes be one of the hottest months of the season, it is actually the perfect time to plant Fall-Flowering Crocus. These quick-blooming, easy-to-grow bulbs bloom in just weeks and offer up late season blooms that are a great resource for pollinators (and the gardener who’s just not quite ready for winter).
Colchicum bulbs can be planted in August for blooms starting in just weeks.
Fall-Flowering Crocus come in elegant shades of pink, white, and purple, and can be planted in the front border of beds (they only get 6-8” tall). They are also a great candidate for adding fall color to containers on patios, balconies, decks, and stairways.
Saffron is worth its weight in gold, so it pays to grow your own! These beautiful purple crocus flower in fall and offer you pure, prized edible saffron on each flower‚s stigma...
Learn MoreSaffron Crocus Saffron Crocus Crocus sativusAs low as $11.99 Sale $8.99Per Bag of 15Saffron is worth its weight in gold, so it pays to grow your own! These beautiful purple crocus flower in fall and offer you pure, prized edible saffron on each flower's stigmas. Easy to grow and exceptional in containers. (Crocus sativus)This is the world-famous double pink fall flowering colchicum. Each bulb produces 5 to 10 brightly-colored flowers that pop gorgeously among the crowds of autumn leaves. Long-lasting...
Learn MoreWater Lily Colchicum Giant Autumn Crocus Water Lily Colchicum autumnale 'Water Lily'$9.99 Sale $7.49Per Bag of 1This is the world-famous double pink fall flowering colchicum. Each bulb produces 5 to 10 brightly-colored flowers that pop gorgeously among the crowds of autumn leaves. Long-lasting cut blooms are pure elegance in a shallow vase. (Colchicum autumnale)Extra-large flowers in purplish pink. Great for patio pots in fall. Each Colchicum bulb produces 5-10 flowers. (Colchicum giganteum)...
Learn MoreGiant Colchicum Giant Autumn Crocus Giant Colchicum giganteum 'Giant'$9.99 Sale $7.49Per Bag of 1Extra-large flowers in purplish pink. Great for patio pots in fall. Each Colchicum bulb produces 5-10 flowers. (Colchicum giganteum)Glistening pure-white crocus flowers sparked with orange and yellow anthers catch everyone‚s attention against the deep-blue skies of autumn. As welcome in fall as the famous w...
Learn MoreWhite Fall Flowering Crocus Autumn Crocus White Crocus kotschyanus 'Albus'$9.99 Sale $7.49Per Bag of 6Glistening pure-white crocus flowers sparked with orange and yellow anthers catch everyone's attention against the deep-blue skies of autumn. As welcome in fall as the famous white crocus is in springtime. (Crocus kotschyanus)
One of the most popular Fall-Flowering Crocus is Saffron Crocus, which produces lovely purple blooms in the fall. The tiny red stigmas can be harvested and used fresh (or dried) as a spice in your favorite culinary dishes. Yes, this is the same expensive spice that you see in specialty stores and it’s actually quite easy to grow and harvest on your own.
Learn all about growing and harvesting Saffron Crocus for spice.
August is the perfect time to plant Bearded Iris because plants are typically dormant during the extreme heat, making them easy to plant.
Succession Planting In Summer: Bearded Iris
August is the second season (besides spring) to add Bearded Iris to the garden. August-planted Bearded Iris rhizomes acclimate to your garden quicker and grow bigger in their first full season, often blooming in their first spring. Why is this? Bearded Iris, even re-bloomers, are typically dormant during the August heat. When a plant is dormant, it's in a suspended state and not actively growing, conserving all of its energy for the future. This is a perfect time to add plant, move or divide existing plants that are getting overcrowded.
Tall, dark, and handsome, ‚Señor Jinx‚ Bearded Iris will enchant you with velvety black blooms. Emerging in mid-spring, upper petals show just a hint of purple above ...
Learn MoreSenor Jinx Bearded Iris Senor Jinx Bearded Iris Iris germanica 'Senor Jinx'$9.32 Sale $6.99Per Bag of 1Tall, dark, and handsome, 'Señor Jinx' Bearded Iris will enchant you with velvety black blooms. Emerging in mid-spring, upper petals show just a hint of purple above the opulent coal-black falls. 'Señor Jinx' holds up to seven ruffled flowers per stem, each with a bright yellow beard to draw your eye into the ruffles. Upright lancelike foliage adds texture to beds and borders for low-maintenance beauty. (Iris germanica)Award-winning ‘Center Line’ Bearded Iris is perfectly tailored to the traditional cottage garden. A gentle mass of pastel pink frills is dramatically accented by a strong...
Learn MoreCenter Line Bearded Iris Center Line Bearded Iris Iris germanica 'Center Line'$9.32 Sale $6.99Per Bag of 1Award-winning ‘Center Line’ Bearded Iris is perfectly tailored to the traditional cottage garden. A gentle mass of pastel pink frills is dramatically accented by a strong orange beard and deep violet veining on the falls. Though the cultivar is relatively new, ‘Center Line’ imparts a timelessness and fragrance to the sunny, mid-spring garden that speaks of wide porches and warm days. (Iris germanica)The silky, elegant flowers of ‘Twist of Sheree’ Reblooming Bearded Iris will bloom first in mid-spring, and again at summer’s end, contrasting nicely with your spri...
Learn MoreTwist of Sheree Reblooming Bearded Iris Twist of Sheree Reblooming Bearded Iris Iris germanica 'Twist of Sheree'$11.99 Sale $8.99Per Bag of 1The silky, elegant flowers of ‘Twist of Sheree’ Reblooming Bearded Iris will bloom first in mid-spring, and again at summer’s end, contrasting nicely with your spring and summer favorites. Bright white standards have a gentle wash of lavender and lemon, set off by the ruffled, deep burgundy-plum falls. Easy to grow and deer and rabbit resistant, it will naturalize when happy, and is pollinator friendly. Great for cut flower bouquets as well! (Iris germanica)Escape to a garden of decadence and drama with our Midnight Gold Bearded Iris Collection. The large, beautiful blooms showcase saturated purple, rich velvety violet, and inky nearly ...
Learn MoreMidnight Gold Bearded Iris Collection Midnight Gold Bearded Iris Collection Iris germanica$49.32 Sale $36.99Per Collection of 5Escape to a garden of decadence and drama with our Midnight Gold Bearded Iris Collection. The large, beautiful blooms showcase saturated purple, rich velvety violet, and inky nearly black petals. Glimmers of soft gold light up the collection, with highlights on the variegated foliage like shooting stars. Collection of 5 plants. (Iris germanica)
Succession Planting In Summer and Fall: Cover Crops
Planting Cover Crops in Summer: Cover crops are an easy way to add nutrients to your soil in areas where a vegetable crop has just passed, or new areas you’d like to plant in the fall. Summer is actually a great time to plant cover crops and you can do so in two ways:
- Use cover crops to fill in gaps in your garden. Weed growth is often at its strongest in the summer and cover crops will help fill in gaps in the garden that weeds most likely will overtake -- as well as add nutrients.
- Plant cover Crops in bare areas around trellised plants. Plant cover crops in the garden around your trellised, tall vegetables like tomatoes or beans. They’ll not only suppress weeds in the garden bed, but also provide extra nutrients to the soil.
Cover crops (like this Clover) can be planted in the summer or fall to add nutrients to the soil.
Planting Cover Crops in Fall: A more common use of cover crops is fall seeding, after everything has finished up for the year. Plant varieties like Clover and Vetch in colder areas after there have been a few hard frosts and the seed will lie dormant until the early spring. In warmer areas (like the South) plant just before the rainy season. The cover crops will grow quickly come spring and suppress any early spring weed growth, while also adding nutrients to the soil before it's time to plant your vegetables or flowers.
Some Of Our Favorite Quick-Growing Cover Crops:
Many spring-blooming bulbs (like Tulips and Daffodils) must be planted in the fall as they need months of near-freezing temperatures to grow and bloom.
Succession Planting In Fall: Spring-Blooming Bulbs
Some of our favorite spring-blooming flowers, like Daffodils, Tulips, and Allium, have to be planted in the fall. These bulbs require 3-4 months of near-freezing temperatures to grow and bloom in your garden because they are native to colder regions (think: the Netherlands) and need this cold period. If you're in an area that doesn't receive this type of cold weather naturally, you can pre-chill the bulbs in your refrigerator and plant in early spring.
Learn how to chill spring-blooming bulbs.
But this is all good news for gardeners; we love the cool, crisp fall weather and jump at any excuse to get out and enjoy the garden this time of year. The term, “dig, drop, done” was coined about Fall-Planted Bulbs because they are so easy to grow. Add your favorite Daffodils, Tulips, and more to the the garden in fall and simply wait for a spectacular spring show of color!
Fall-planted perennials often grow and bloom in their first season.
Succession Planting In Fall: Perennials
While many think of spring as the best time to add perennials to the garden, fall is another great time plant, because:
- Plants will get a jump-start on spring growth. Planting perennials in the fall gives them a head start on growth the following spring. Root systems will start to grow when you get them in the ground in the fall, letting the plant get established, and then as soon as the ground thaws in spring, long before the soil can be worked and any new plants can be put in. This early start means first-season perennials can actually show their flowers!
- The cool weather. If the hot, sweaty weather isn’t for you, try gardening in the fall! The crisp, cool air makes for an enjoyable, leisurely experience working in the garden. The cool weather also gives plants less of a transplant shock (than planting in extreme heat) and lets them acclimate to your garden better.
Fall-seeded annual wildflowers (like Sunflowers and Cosmos) typically bloom two weeks earlier than if planted in the spring.
Succession Planting In Fall: Wildflowers
All wildflower seeding provides a jumpstart on spring growth and blooms, while also helping to suppress weed growth in the early spring. Many experts actually think fall wildflower planting is better than seeding in the spring for several reasons:
- Fall planting mimics seeding in nature. As wildflowers finish up blooming for the season, they naturally drop their seeds for next year’s growth.
- Earlier growth/blooms. Wildflower seeds planted in fall lay dormant in the winter and burst into growth as soon as the ground warms, which results in earlier growth and blooms. Typically, a fall-seeded annual blooms two weeks earlier than if planted in the spring.
- More time to plant. The cool fall weather is forgiving; you can clear your area and because it’s too cool for weeds to start growing, you don’t have to seed right away.
- Spring weed suppression. Because your wildflowers will come up and grow as soon as the ground warms, they will have a better time out-competing the weeds in your soil. This means less weeding time for you (which we all want).
When To Plant Wildflowers In Fall, By Region
- Areas With Cold (Freezing) Winters, Including Northeast, Midwest, West: Plant wildflowers in the fall after there have been several hard frosts in your area and the seeds will stay dormant until early spring.
- Areas With Warmer (Above Freezing) Winters, Including Southeast, Southwest: Plant Wildflowers at the beginning of your rainy season, which typically falls in January or February. This will give wildflowers the natural water they need to grow and let them get established in your garden during the coolest part of the year.
Although all of these different planting times may seem a bit challenging to keep up with, doing a little planting several times throughout the season is much easier -- and more rewarding -- than trying to cram everything in the few weeks in early spring. Also, succession planting allows you to let things grow for a bit and you can evaluate whether something needs to be moved or added in the next planting time, without having to wait all the way until next spring.
What are some of your favorite succession planting tips? Please share in the comments below!
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