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Tall Trailing Mix Nasturtium Flowers

Standard · Tropaeolaceae

Tall Trailing Mix is a vigorous climbing or trailing nasturtium that can spread over walls, spill from baskets, or climb trellises for up to 6 to 10 feet in a long season. Flowers come in warm shades of red, orange, yellow, and cream above broad water-lily leaves. It is especially useful where you want edible flowers plus quick soft cover in warm weather. Key facts: 55–70 days to maturity, 6+ hours of sun, 12–18 " spacing. Can be grown in containers with care (5+ gallon minimum).

Updated April 19, 2026 · Backed by 4 cited sources
Overview

At a Glance

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

Days to maturity
55–70 days
Sun
6+ hours
Full Sun, 6 8 Hours
Spacing
12–18 "
between plants
Seed start
0–3 weeks
before transplant
Container
Possible
Needs 5+ gal minimum
Height
1–2 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.

Resilience

Plant Health

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

Tolerance
Heat: Moderate Cold: Low Drought: Moderate

Common Issues

Poor Flowering

Cause: Excess nitrogen or overly rich soil drives leafy growth instead of blooms.

Prevention: Use moderate fertility and avoid high-nitrogen feeding.

Aphids

Cause: Tender new growth attracts aphid colonies.

Prevention: Encourage beneficial insects and hose off colonies early.

Crown Rot

Cause: Waterlogged soils can rot seeds, stems, or roots.

Prevention: Use well-drained soil and avoid overwatering.

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

Harvest flowers when freshly opened and leaves while young and tender. Seed pods can also be picked green for pickling.

Expected yield0.1–0.5 lbs/plant
Storage2 days — Use flowers and leaves fresh; refrigerate briefly in a dry container if needed.
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 Tall Trailing Mix'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 University of Maryland Extensionuniversity Illinois Extensionreference Cornell Home Gardening
Internal links

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