Clematis paniculata Sweet Autumn

Status: Out of stock

Product ID#: cpani
Product Description
Sun Exposure Sun, Part Sun/Shade
Bloom Time Summer, Fall
Soil Conditions Normal
Flower Color White
Mature Plant Size (H x W) 15-20' x 6-10'
Sweet Autumn Clematis is an excellent, small-flowered variety that is very vigorous. Clusters of small, fragrant white flowers bloom from September until frost. An excellent vine for split rail fences, lamp posts, and great as a groundcover. Another interesting use is to plant among large Junipers and let them climb up and through these plants. This plant likes cool moist soil and full sun. The Juniper application works great, as the ground is shaded and the tops get full sun. Trim back dead tops early in spring before new growth begins. Because this clematis is so vigorous, established plants cut back in spring can grow 15' or more in one season. Pruning type 3.
  • sunshade Sun, Part Sun/Shade
  • Mature Plant Size (H x W) Mature Plant Size (H x W): 15-20' x 6-10'
  • Bloom Season Bloom Season: Summer, Fall
Key features
  • Attracts Bees
  • Long Blooming
  • Walnut Toxicity Resistant
  • Attracts Butterflies
  • Fragrant Flowers
  • Attracts Pollinators
Planting Care

Planting & Care for Clematis Vines

  • Clematis like to have their top growth in full sun but their roots in the shade. Roots can be shaded with plantings of groundcovers plants or with other low-growing subjects, with paving slabs or with even a deep mulch of organic matter.
  • Clematis grow well in any well-drained, reasonably rich soil containing plenty of humus.
  • They are particularly suitable for chalky soils.
  • Keep the plants permanently mulched with organic matter.
  • These are “twiners” – climbing plants that twine their new shoots entirely around a support.
  • Clematis should not be allowed to suffer from lack of moisture, so water plants well during rainless periods if the soil starts to dry out.
  • Plant in February or March.
Planting Groundcovers/Vines
  • Planting bed should consist of 6-8" of topsoil, well mixed with approximately 2" of peat moss.
Pruning - After Planting
  • Groundcovers/Vines – no pruning is needed right away.
Pruning - Through-out the Season
  • The only pruning these plants need is thinning when they become congested. This is done after flowering.
  • If renovation pruning is needed, cut down the complete plant to within 12 inches of the ground after flowering ever three to four years.
Watering - After Planting
  • Plants typically take approximately 6 weeks to establish new roots in your soil. During this period, water plants as often as every 2-4 days at the start and at least a minimum of once per week.
  • Beyond the 6 week establishment period, water once per week, unless rains occur.
  • Stick your finger into the soil around 3” to check soil moisture.
Watering - Through-out the Season
  • After the first season, plants should only be watered during extended periods without rain.
  • Clematis should not be allowed to suffer from lack of moisture, so water plants well during rainless periods if the soil starts to dry out.
  • How do you know if your plants need water? The easiest way to tell is to touch the soil around the roots. If it is moist, there is no need to water. If it is dry, give it a good soaking with the hose end (no nozzle) watering the soil only, not the leaves.
  • Stick your finger into the soil around 3” to check soil moisture.

Planting & Handling Help

Download our Planting and Handling Guide below to plan for a successful arrival and install of your plants. Be sure to water all plants as soon as they arrive and every day until you’re ready to plant. Keep any bare root bundles in a shady, cool spot with the roots covered at all times.

Learn More

Watch our videos on handling bare root plants, how your order is prepared for shipment and more.

Plant Sizing

What is the difference between Containers, Grow Bags, Bare Root, and Balled & Burlap (B&B)?

Shipping Times

Our FedEx and local shipping times depend on two factors, one is by the region and the second is the type of product being shipped. For example, small fruits are only shipped in spring, but majority of our perennials are shipped from spring until fall. Keep in mind the dates below act as a general guide. Due to unpredictable weather, staffing, inventory and industry demands these timelines can change. Therefore, we cannot guarantee any of these times.


Shipping Dates by Region*


Northern Cold Region: April 22nd - November 7th

Northern Region: April 15th - November 7th

Middle Region: April 1st - November 7th

Southern Region: March 15th - November 7th

Local Delivery (small radius from Waterloo, WI): April 22nd - November 7th


Shipping Dates by Season*


Spring Shipping: Region Start Date (above) - May

Fall Shipping: September - November


Due to unpredictable weather, these times may vary. Some varieties are exceptions due to heat and plant health reasons. Enter your shipping zip code at the top of this page and be sure to check the shipping information on each product before you add it to your cart. If the product is too large or restricted in your state, you will not be able to checkout with that item in your cart.