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Indian Spring Mix Hollyhock Flowers

Mix · Malvaceae

Indian Spring Mix hollyhock is a tall cottage-garden blend with large saucer-shaped blooms in shades of rose, pink, crimson, and white on sturdy vertical spikes. Like Summer Carnival, it is a biennial that often flowers the first year from early sowing, but it is still fundamentally a short-lived hollyhock. It is best used against fences, along walls, or in pollinator beds where height and old-fashioned color are welcome. Key facts: 120–180 days to maturity, 6+ hours of sun, 18–24 " spacing. Not recommended for containers. Requires stake for best results.

Updated April 19, 2026 · Backed by 5 cited sources
Overview

At a Glance

The essentials first: timing, light, spacing, seed-starting, container fit, and overall size.

Days to maturity
120–180 days
Sun
6+ hours
Full Sun, 6 8+ Hours
Spacing
18–24 "
between plants
Seed start
6–8 weeks
before transplant
Container
Not recommended
Needs 10+ gal if attempted
Height
5–8 ft
at maturity
Planting window

Zone Planting Guide

Switch zones to see whether this plant is a strong fit, what frost timing looks like, and any extra notes worth planning around.

This card updates instantly with viability, frost timing, and any planting notes for your selected zone.

Care

Growing Guide

Everything in one place: seed starting, transplant timing, watering, soil, and structural support.

Seed starting
Germination
Time10–21 days
Optimal temperature68°F
Seed depth0.125"
Moving outdoors
Transplanting
Minimum soil temp55°F
Harden off10 days
Moisture
Watering
Weekly0.75–1.25 "
NeedsModerate
Drip or base watering
Root zone
Soil
pH range6–7.5
PreferredWell Drained Loam With Moderate Organic Matter
Structure
Support
TypeStake — Tall flowering spires benefit from staking or a fence/backing, especially in windy sites.
Hollyhock, Indian Spring Mix Flower seeds

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When you shop through this link, SoilStack earns a small commission at no extra cost to you. It's how we keep the site free and the calendar ad-free. Every product on this page was hand-selected based on university extension research.

Hollyhock, Indian Spring Mix Flower seeds

10-21 days. The spectacular Indian Spring Hollyhock Mix (Alcea rosea ) produces towering spikes that can grow to 9' tall with saucer-sized blooms in shades of rose and crimson.

Shop on Seeds Now
Resilience

Plant Health

Stress tolerance, resistance notes, and the most common problems to watch for as plants mature.

Tolerance
Heat: Moderate Cold: High Drought: Moderate

Common Issues

Hollyhock Rust

Cause: Warm humid weather and wet foliage favor orange rust pustules on leaves.

Prevention: Use wide spacing, base watering, and remove infected foliage promptly.

Wind Flop

Cause: Tall flowering spikes can lean or snap in storms.

Prevention: Stake early or grow against a fence.

Crown Stress

Cause: Wet heavy soil weakens roots and crowns.

Prevention: Plant in well-drained soil and avoid burying the crown with mulch.

Feeding & picking

Nutrition & Harvest

How hungry the plant is, what ripe harvest looks like, and how long the crop keeps after picking.

Feeding
Nutrition
Feeding intensityLight feeder
RecipesWorm Castings Topdress, Compost Tea
Timing
Harvest

Cut stems when the lower third of flowers is open and upper buds are showing color, or leave stems to set seed after flowering.

Expected yield0–1 lbs/plant
Storage5 days — Use fresh stems quickly; dry seed pods only after they mature fully on the plant.
Plant relationships

Companion Planting

Helpful neighbors can support growth or deter pests. Keep antagonistic plants separated to reduce stress and competition.

Avoid planting near
Herb Fennel
What you'll need

Growing Supplies

Based on Indian Spring Mix Hollyhock's growth profile -- recommendations matched to this variety's specific requirements.

Drip irrigation / soaker hose kit

Every gardener benefits from putting water at the root zone instead of on the leaves, because drip and soaker systems reduce foliar disease pressure by limiting leaf wetness and soil splash. A quality kit should include a backflow preventer, filter, pressure reducer, and UV-resistant tubing.

Source: Iowa State University Extension; Colorado State University Extension; UMass Extension

Soil test kit

A soil test gives a baseline for pH and nutrient status so gardeners can add only what the soil actually needs. Prioritize a mail-in or lab-affiliated kit whenever possible because extension guidance notes that laboratory testing is more accurate than instant readers.

Source: University of Maryland Extension; Purdue Extension; Montana State University Extension

Quality bypass pruners

Extension guidance favors bypass designs because they make cleaner, closer cuts on living tissue than anvil types. Look for hardened steel blades that can be sharpened, a comfortable grip, and a cutting capacity matched to real home-garden stems.

Source: University of New Hampshire Extension; Iowa State University Extension; Purdue University Extension

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Research

Sources

Reference material and extension guidance used to build this growing guide.

seed_catalog Seeds Nowuniversity North Carolina Extension Gardener Plant Toolboxuniversity Illinois Extensionuniversity University of Minnesota Extensionuniversity Colorado State University Extension
Internal links

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