COLD Weather Protection

Do you live in a cold climate? You'll need weather protection!

Using a heat pack for shipping plants is generally recommended when temperatures fall below around 50°F (10°C) during transit. Here’s a guideline for when to use or avoid heat packs based on the temperature range:

Above 60°F (16°C): Avoid using a heat pack. Temperatures this warm can risk overheating the plants inside the package, especially if combined with insulation, which can lead to plant stress or damage.

40°F to 60°F (4°C to 16°C): A 72-hour heat pack can be useful, especially if temperatures are likely to fluctuate. It provides a moderate level of warmth without overheating the plants.

Below 40°F (4°C): Consider a 72-hour or 110-hour heat pack, depending on shipping time. If the weather is consistently very cold, the longer-duration heat packs are generally better, as they provide sustained warmth that can protect the plants throughout transit.

Below 20°F (-6°C): Use caution even with heat packs. At very low temperatures, especially with extended transit times, multiple heat packs or additional insulation may be necessary to keep the plants safe.

For optimal protection, we aim to position the heat pack where it has airflow but isn’t touching the plants directly. 

We offer:
72 hour heat packs for $5
110 hour heat packs for $8
Insulation starts at $5 (depends on box size)
You'll need to let us know which heat pack you prefer and if you want insulation or not.  

Shipping heat packs for plants are designed to keep temperatures stable inside packages during transit, especially in colder weather. These heat packs are essential for protecting temperature-sensitive plants from freezing or chilling temperatures.

Here's how they work:

1. Activation: The heat packs are air-activated. Once they’re exposed to oxygen, the chemical reaction inside begins, producing heat. The packs typically consist of a mixture of iron powder, salt, water, activated carbon, and vermiculite.

2. Heat Generation: As the iron powder oxidizes in the presence of air, it releases heat. The pack maintains a consistent warmth—usually between 100°F to 130°F (37°C to 54°C)—throughout the specified time frame.

3. Placement: Heat packs are usually placed in an area of the packaging that allows some airflow but doesn’t come into direct contact with the plants. This prevents accidental overheating or scorching.

4. Duration: The 72-hour and 110-hour timeframes indicate how long the pack can sustain warmth. This duration is ideal for different shipping speeds:

• 72-hour packs: Good for shorter, priority shipping times (around 3 days).
• 110-hour packs: Useful for longer or delayed transit (up to 4-5 days).

5. Insulation: For best results, heat packs are often used with insulated shipping materials. This minimizes temperature fluctuations, especially if the package encounters very cold temperatures en route.

Using the appropriate pack ensures plants stay within a safe temperature range, reducing the risk of cold damage and helping them arrive healthy.

We offer:
72 hour heat packs for $5
110 hour heat packs for $8
Insulation starts at $5 (depends on box size)

You'll need to let us know which heat pack you prefer and if you want insulation or not.