From 2.3k real designs
What to plant with Agastache
These are what gardeners actually planted. We measured every Sow design containing Agastache and ranked the plants that turn up alongside it far more often than chance would explain.
Used together in 112 designs — 5.44× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–9 with Agastache; wants the same full sun; blooms late spring to Agastache's mid-summer.
Used together in 46 designs — 4.54× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–9 with Agastache; wants the same full sun; blooms mid-spring to Agastache's mid-summer; fills in front of Agastache.
Used together in 103 designs — 4.49× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–9 with Agastache; wants the same full sun.
Used together in 47 designs — 4.41× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–9 with Agastache; wants the same full sun; blooms early summer to Agastache's mid-summer.
Used together in 116 designs — 4.16× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–10 with Agastache; wants the same full sun; blooms fall to Agastache's mid-summer.
Used together in 119 designs — 4.06× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–10 with Agastache; wants the same full sun; blooms mid-summer to fall to Agastache's mid-summer.
Used together in 43 designs — 3.64× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–9 with Agastache; wants the same full sun; blooms mid to late summer to Agastache's mid-summer.
Used together in 49 designs — 3.21× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Agastache; wants the same full sun; blooms mid-spring to Agastache's mid-summer; fills in front of Agastache.
Zones 4–8Care & prices →
Used together in 49 designs — 3.1× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Agastache; wants the same full sun; blooms late spring to Agastache's mid-summer.
Used together in 48 designs — 2.84× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–9 with Agastache; wants the same full sun.
Used together in 48 designs — 2.67× more often than this plant appears in gardens generally.
Why it works: shares Zones 5–9 with Agastache; blooms early summer to Agastache's mid-summer; fills in front of Agastache.
Used together in 57 designs — 1.78× more often than this plant appears in gardens generally.
Why it works: shares Zones 4–8 with Agastache; wants the same full sun; blooms early summer to Agastache's mid-summer; fills in front of Agastache.
Zones 4–8Care & prices →
Method: we counted every Sow design containing Agastache (2.3k 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”.
Agastache pairing questions
What should I plant with Agastache?
Across 2.3k real garden designs containing Agastache, the partner that shows the strongest affinity is Blue Wild Indigo — it appears alongside Agastache 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 Agastache 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 Agastache?
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 Agastache 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 Agastache and its companions in it at true mature size — before you buy any of them.
