From 5.7k real designs

What to plant with Symphyotrichum

These are what gardeners actually planted. We measured every Sow design containing Symphyotrichum and ranked the plants that turn up alongside it far more often than chance would explain.

12 companions5.7k designs analyzedRanked by affinity, not popularity
  1. Virginia Sweetspire
    1

    Virginia Sweetspire

    Itea virginica 'Merlot'

    Used together in 97 designs — 7.39× more often than this plant appears in gardens generally.

    Why it works: shares Zones 5–9 with Symphyotrichum; wants the same full sun; blooms early summer to Symphyotrichum's late summer; adds height behind Symphyotrichum.

  2. Camassia quamash Blue Melody
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    Camassia quamash Blue Melody

    Camassia quamash 'Blue Melody'

    Used together in 262 designs — 6.86× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–8 with Symphyotrichum; wants the same full sun; blooms mid-spring to Symphyotrichum's late summer; fills in front of Symphyotrichum.

  3. Low Scape Mound Chokeberry
    3

    Low Scape Mound Chokeberry

    Aronia melanocarpa 'Low Scape Mound'

    Used together in 116 designs — 6.73× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–9 with Symphyotrichum; wants the same full sun; blooms mid-spring to Symphyotrichum's late summer.

  4. Low Scape Hedger Chokeberry
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    Low Scape Hedger Chokeberry

    Aronia melanocarpa 'Low Scape Hedger'

    Used together in 63 designs — 6.69× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–9 with Symphyotrichum; wants the same full sun; blooms late spring to Symphyotrichum's late summer; adds height behind Symphyotrichum.

  5. Culver's Root
    5

    Culver's Root

    Veronicastrum virginicum 'Fascination'

    Used together in 54 designs — 6.59× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–8 with Symphyotrichum; wants the same full sun; blooms mid-summer to Symphyotrichum's late summer; adds height behind Symphyotrichum.

    Zones 4–8from $17.99Care & prices →
  6. Autumn Magic Black Chokeberry
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    Autumn Magic Black Chokeberry

    Aronia melanocarpa 'Autumn Magic'

    Used together in 71 designs — 6.49× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–8 with Symphyotrichum; wants the same full sun; blooms mid-spring to Symphyotrichum's late summer; adds height behind Symphyotrichum.

    Zones 4–8from $89.95Care & prices →
  7. Virginia Sweetspire
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    Virginia Sweetspire

    Itea virginica 'Love Child'

    Used together in 83 designs — 6.32× more often than this plant appears in gardens generally.

    Why it works: shares Zones 5–9 with Symphyotrichum; wants the same full sun; blooms late spring to Symphyotrichum's late summer.

  8. Gemo St. Johnswort
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    Gemo St. Johnswort

    Hypericum kalmianum 'Gemo'

    Used together in 56 designs — 6.3× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–7 with Symphyotrichum; wants the same full sun; blooms mid-summer to Symphyotrichum's late summer.

    Zones 4–7from $15.50Care & prices →
  9. Scentlandia Sweetspire
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    Scentlandia Sweetspire

    Itea virginica 'Scentlandia'

    Used together in 86 designs — 6.26× more often than this plant appears in gardens generally.

    Why it works: shares Zones 5–9 with Symphyotrichum; wants the same full sun; blooms early summer to Symphyotrichum's late summer.

  10. Mesa Peach Blanket Flower
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    Mesa Peach Blanket Flower

    Gaillardia x grandiflora 'Mesa Peach'

    Used together in 145 designs — 6.08× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–10 with Symphyotrichum; wants the same full sun; blooms summer to fall to Symphyotrichum's late summer.

    Zones 4–10from $11.77Care & prices →
  11. Purple Coneflower
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    Purple Coneflower

    Echinacea purpurea 'Modern Prairie Garden'

    Used together in 147 designs — 6.05× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–8 with Symphyotrichum; wants the same full sun; blooms mid-summer to Symphyotrichum's late summer.

  12. Prairie Dropseed
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    Prairie Dropseed

    Sporobolus heterolepis 'Tara'

    Used together in 220 designs — 6.02× more often than this plant appears in gardens generally.

    Why it works: shares Zones 4–8 with Symphyotrichum; wants the same full sun.

Method: we counted every Sow design containing Symphyotrichum (5.7k of them), then scored each other plant by how much more often it appears in those designs than in designs generally (lift), requiring at least 40 shared designs. Ranking by lift rather than raw count is what stops the list collapsing into “the most popular plants”.

Symphyotrichum pairing questions

What should I plant with Symphyotrichum?

Across 5.7k real garden designs containing Symphyotrichum, the partner that shows the strongest affinity is Virginia Sweetspire — it appears alongside Symphyotrichum far more often than its overall popularity would predict. The full ranked list is above.

How was this companion list decided?

From data, not opinion. We looked at every Sow design containing Symphyotrichum and measured which other plants appear with it more often than chance would explain (a lift score), requiring at least 40 shared designs so nothing here is a small-sample fluke. That is why the list reads like a coherent planting palette rather than a list of bestsellers.

Do companion plants need the same conditions as Symphyotrichum?

Yes — that is the first filter. A companion has to share the hardiness range and light exposure, or one of the two will struggle. Each entry above states the zones it shares with Symphyotrichum and whether it wants the same light; pairings that differ in bloom time or height are noted, because that contrast is usually the point.

Keep exploring

Try these pairings in your own yard

Snap a photo of your space and place Symphyotrichum and its companions in it at true mature size — before you buy any of them.