Physocarpus opulifolius “Black and Gold Mix” (Ninebark) [15 Seeds]

(2 customer reviews)


Germination Information: I recommend these only for gardeners who have experience with seeds that benefit from or require a chilling period. The easiest approach is to sow the seeds—just barely covered with growing medium—in fall to mid winter, setting their pot outdoors in a spot protected from mice so they can get a natural chilling period and then germinate when conditions are right in spring. (The winter-sowing technique can work well for these seeds.)

If you sow after January, give the pot an artificial chilling period of about 3 months.

It is possible that these seeds could germinate (though perhaps at a less than optimal rate) if you start them first in warm, bright conditions. But if you try that and no seedlings appear in 2 to 3 weeks, then try the artificial chilling period.

Note that this information will not appear on the seed packet you receive.

Please read the description as well before ordering.

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Native to most of the eastern half of North America, ninebark (Physocarpus opulifolius) is a mounded, deciduous shrub that reaches 6 to 10 feet tall. The species offers eye-catching features through much of the year: clusters of white flowers in late spring to early summer, bright red seedpods in summer, fall foliage color in shades of yellow to red, and exfoliating (peeling) bark on the stems for winter.

You don’t often see the straight species for sale, but cultivars with colorful foliage are widely available. In my garden, I have yellow-leaved ‘Dart’s Gold’ and near-black Diabolo (‘Monlo’), as well as a number of self-sown seedlings from them. Most of the seedlings have the foliage color of their parent plant, but some of the seedlings are intermediate in color, as shown in the second-to-last photo: golden to orangey shoot tips with darker older foliage. These seeds are about an even mix from golden- and dark-leaved plants, but there’s no guarantee as to the exact colors you will get. If you want a specific foliage color and an immediate presence in your garden, you are best off buying a plant. But if you have lots of space and enjoy experimenting, these seeds are likely to produce some interesting results and are worth a try. Full sun to partial shade. Zones 2 to 8.

Collected in early to mid September 2023. At least 15 seeds. Unknown ecotype. Shipping to US addresses only.

Please read the germination information as well before ordering.

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2 reviews for Physocarpus opulifolius “Black and Gold Mix” (Ninebark) [15 Seeds]

  1. Julie Vance (verified owner)

  2. Judith Cmero (verified owner)

    My seedlings are doing beautifully.

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