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Digitalis Mix

Flower
Year 2 to harvest
Part shade to full sun (cool climates)

Also known as: Excelsior Mix

Good to know

Severely poisonous

This plant is severely poisonous if any part of it is eaten. Keep it away from children, pets and livestock, wash your hands after handling it, and never use it in teas, food or home remedies.

What's special about Digitalis Mix

The tall classic 4–5 ft spikes of white, pink, rose, cream, and purple thimbles with speckled throats.

Growing this variety

Digitalis Mix follows the same growing basics as Foxglove. Variety-specific maturity above; everything else below applies to the whole Foxglove family.

Season
Cool season — biennial
USDA zones
Biennial in zones 4–9
Sun
Part shade to full sun (cool climates)
Start indoors
8–10 weeks before last frost
Direct sow outdoors
Late spring through midsummer for bloom next year
Days to harvest
Year 2

Germination

Germination time
14–21 days
Soil temperature
60–70°F (15–21°C)

Spacing & depth

Sow depth
Surface — needs light
Seed spacing
Sow very thinly; thin to 18 in
Mature plant spacing
18–24 in (45–60 cm)
Row spacing
24 in (60 cm)

How to plant

Surface-sow the dust-fine seed on damp mix — mix with sand for even scatter, do not cover. Year 1 forms a leafy rosette; year 2 sends up a 3–5 ft flower spike. Cut the main spike after bloom to trigger side spikes.

Grower's tip

ALL PARTS ARE POISONOUS — the source of the heart medication digitalis. Do not plant where children or livestock may graze. Reseeds freely in cool moist beds.

Good to know before you grow this

Parts of this plant are toxic to people and pets — don't eat it and keep it away from children and animals.

Soil preferences

Soil type

Well-drained garden soil. Native/wildflower species prefer lean soil; cutting flowers prefer richer beds.

pH range

6.0–7.0

Amendments

Work 1 in of compost into beds before sowing. Skip nitrogen fertilizer on wildflowers — it favors foliage over blooms.

Watering

Frequency

1 in per week during establishment, drought-tolerant once rooted for most species.

Method

Deep, infrequent soakings at the base. Overhead water on ornamentals promotes botrytis and rust.

Over vs. under

Overwatered: rotted crowns, mildew, floppy stems. Underwatered: small blooms, curled leaves, quick fade.

Top-water or bottom-water?

Either works — Bottom-water seed trays and young potted annuals to protect fragile stems from damping-off. Top-water established plants at the base in the morning so foliage dries by night. Avoid overhead sprinkling on open blooms.

Temperature tolerance

Ideal daytime air temp

60–80°F (16–27°C) ideal for most annuals

Ideal nighttime air temp

50–65°F (10–18°C)

Frost sensitivity

Cool-season annuals (larkspur, poppy, snapdragon) tolerate light frost; warm-season annuals (zinnia, cosmos, marigold) are frost-tender.

Container growing

Container-suitable?

Possible with the right cultivar

Recommended pot size

8–14 in (20–35 cm) wide

Notes

Compact and dwarf types do best in pots; tall cutting flowers need staking.

Detailed harvesting

Nothing here is harvested for the kitchen. Wear gloves for any cutting or deadheading, keep the sap off your skin and eyes, and wash your hands and tools afterwards.

Post-harvest storage & preservation

Do not dry, store or preserve any part of this plant near food. Bag prunings for the bin — never compost them where animals browse, and never burn them.

Culinary, medicinal & other uses

Ornamental only — this plant is poisonous and has no food, tea or home-remedy use. Grow it for looks, wear gloves, and keep it away from children, pets and livestock.

Medicinal or traditional uses are shared for interest only — this is not medical advice. Consult a qualified professional before using any plant medicinally.

Seed saving

Pollination

Mostly insect-pollinated (outcrossing).

Isolation needs

For pure strains, isolate 150–800 ft or bag heads. Wildflower mixes are meant to cross freely.

How to save

Stop deadheading favorite blooms; let heads dry brown and rattling on the stem, then collect into a paper bag.

Your zone's planting calendar

Pick your USDA hardiness zone and we'll estimate the key dates for foxglove in your area. These are regional averages — always check your own last-frost forecast before sowing.

My Digitalis Mix Foxglove notes

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