# Biodynamic Sequential Spray Kit (for weather extremes)

**BD Sequential Spray Kit:** Includes one unit each of BC, BD 500 Horn Manure, BD 501 Horn Silica, and BD 508 Horsetail.

Developed by Hugh Courtney, a sequential spray of all of the biodynamic preparations can be used to balance hot, dry, droughty conditions. It can also be used to moderate conditions with too much moisture.

Sequential Spray Kit Detailed Usage Instructions: [English](https://go.jpibd.org/instructions-sequential) | [Chinese](/pages/making-using-bd-preps#chinesesequential)

**Shop components separately:** [Barrel Compound (BC)](https://go.jpibd.org/product-bc) · [BD 500 Horn Manure](https://go.jpibd.org/product-bd-500) · [BD 501 Horn Silica](https://go.jpibd.org/product-bd-501) · [BD 508 Horsetail](https://go.jpibd.org/product-bd-508)

## Details

- **Price:** 30.65 USD
- **Vendor:** The Josephine Porter Institute
- **Type:** Biodynamic Kits
- **Tags:** Biodynamic Kits, Specialty Preparations, Spray Preparations

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 30.65 USD | In stock |

## Images

- Biodynamic Sequential Spray Kit (for weather extremes) - The Josephine Porter Institute

---

> Source: [The Josephine Porter Institute](https://www.jpibiodynamics.org/products/sequential-spray-kit-weather)
> Updated: 2026-08-10