how to save begonias over winter

3 min read 27-01-2025

Meta Description: Learn how to successfully overwinter your begonias! This comprehensive guide covers various methods for different begonia types, ensuring your vibrant blooms return next spring. From tubers to rhizomes, we'll walk you through the process step-by-step, including essential tips for optimal storage and repotting. Don't let your beautiful begonias perish – save them with our expert advice!

Bringing Your Begonias Indoors

Begonias, with their vibrant blooms and diverse foliage, add a splash of color to any garden. But as temperatures drop, these tender plants need protection. Overwintering begonias ensures their survival and a spectacular display the following spring. This guide will walk you through the process, tailored to different begonia types.

Identifying Your Begonia Type

Before you begin overwintering, it's crucial to identify your begonia type. This determines the best method for saving them. The three main types are:

Tuberous Begonias: These begonias store energy in fleshy tubers.
Rhizomatous Begonias: These have thick, creeping stems (rhizomes) that spread along the soil surface.
Fibrous-rooted Begonias: These have a more standard root system, and often are more easily overwintered indoors in pots.

How to Overwinter Different Begonia Types

1. Overwintering Tuberous Begonias

H2: When to Dig Up Tuberous Begonias?

Wait until after the first frost. Once the first frost has passed, and the foliage is beginning to die back, it's time to carefully dig up your tuberous begonias.

H3: Digging and Cleaning

Gently dig around the tuber, being careful not to damage it.
Brush off excess soil.
Allow them to dry in a cool, dry, and shaded place for a few days. This helps prevent rot.

H3: Storing Tuberous Begonias

Method 1: Storing in Peat Moss: Carefully place the tubers in a container filled with peat moss or vermiculite. Keep the container in a cool, dark, and dry place, ideally around 45-50°F (7-10°C).
Method 2: Air Drying: Alternatively, you can let the tubers air dry completely and store them in a paper bag in a cool, dark location.

H3: Repotting Tuberous Begonias in Spring

In late winter or early spring, repot your tubers in fresh potting mix, placing them with the growing point (usually the top) facing upwards.

2. Overwintering Rhizomatous Begonias

Rhizomatous begonias are more tolerant of cooler temperatures and can often be overwintered indoors without significant changes to their environment.

H2: How to Overwinter Rhizomatous Begonias Indoors?

Reduce Watering: Gradually reduce watering as the weather cools. Overwatering can lead to root rot.
Move Indoors: Before the first frost, carefully move your potted rhizomatous begonias indoors to a bright, but indirect sunlight location.
Maintain Temperature and Humidity: Maintain a consistent temperature (ideally around 60-65°F (15-18°C)) and moderate humidity. This avoids leaf drop and promotes healthy growth throughout the winter.
Continue Watering: Continue watering sparingly, ensuring the soil remains slightly moist, but not soggy.

H2: Repotting Rhizomatous Begonias

Repotting might be necessary in spring if the plant has become root-bound. Use a well-draining potting mix.

3. Overwintering Fibrous-Rooted Begonias

Many fibrous-rooted begonias are relatively easy to overwinter indoors, provided they are not subjected to extreme temperatures or conditions.

H2: Overwintering Fibrous-Rooted Begonias Indoors

Move to a Cooler Location: Simply move your potted begonias to a cooler location indoors, away from drafts and direct sunlight. A bright windowsill or other south facing, indirect light is a good choice.
Reduce Watering: As with rhizomatous begonias, reduce watering as the temperature drops.
Monitor for Pests and Diseases: Keep an eye out for pests or diseases that may develop in the winter months.

H2: Spring Repotting

If needed, repot in spring using fresh, well-draining potting mix.

Essential Tips for Overwintering Begonias

Proper Potting Mix: Use a well-draining potting mix to prevent root rot.
Avoid Overwatering: Overwatering is a common cause of begonia death.
Light Requirements: Provide ample indirect light during the winter months.
Pest and Disease Control: Inspect regularly for pests and diseases and treat promptly if needed.

By following these steps, you can successfully overwinter your begonias and enjoy their beauty for years to come! Remember to adapt the process to your specific begonia type for optimal results. Next spring, your colorful blooms will reward your efforts!