---
product_id: 32464230
title: "Seed Needs Onion Seeds for Planting White Sweet Spanish Long Day Onions - Non-GMO Heirloom & Untreated Vegetable Seeds to Plant an Outdoor Home Grown Veggie Garden (1 Pack)"
brand: "seed needs"
price: "€ 8.74"
currency: EUR
in_stock: true
reviews_count: 8
category: "Seed Needs"
url: https://www.desertcart.nl/products/32464230-seed-needs-onion-seeds-for-planting-white-sweet-spanish-long
store_origin: NL
region: Netherlands
---

# 14-16 hrs long day growth 450 premium non-GMO seeds Large 1+ lb sweet bulbs Seed Needs Onion Seeds for Planting White Sweet Spanish Long Day Onions - Non-GMO Heirloom & Untreated Vegetable Seeds to Plant an Outdoor Home Grown Veggie Garden (1 Pack)

**Brand:** seed needs
**Price:** € 8.74
**Availability:** ✅ In Stock

## Summary

> 🧅 Grow Sweet Success with Every Seed!

## Quick Answers

- **What is this?** Seed Needs Onion Seeds for Planting White Sweet Spanish Long Day Onions - Non-GMO Heirloom & Untreated Vegetable Seeds to Plant an Outdoor Home Grown Veggie Garden (1 Pack) by seed needs
- **How much does it cost?** € 8.74 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/32464230-seed-needs-onion-seeds-for-planting-white-sweet-spanish-long)

## Best For

- seed needs enthusiasts

## Why This Product

- Trusted seed needs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Generous Yield:** 450 seeds per pack—grow your garden or share the bounty.
- • **Pure & Untreated:** Non-GMO heirloom seeds, fresh and moisture-sealed for peak germination.
- • **Sun-Powered Growth:** Thrives in long daylight zones for robust, flavorful bulbs.
- • **Easy Planting Guide:** Detailed sowing instructions on every artistic packet for stress-free gardening.
- • **Sweet Flavor Profile:** High sugar content onions perfect for raw salads or caramelizing.

## Overview

Seed Needs White Sweet Spanish Long Day Onion Seeds offer 450 fresh, non-GMO heirloom seeds designed for outdoor gardens in higher latitudes. These onions require 14-16 hours of daylight to develop large, sweet bulbs ideal for fresh eating or cooking. Packaged in moisture-resistant, tear-proof packets with clear planting instructions, they promise high germination rates and a rewarding harvest for home gardeners seeking premium quality and flavor.

## Description

desertcart.com : Seed Needs Onion Seeds for Planting White Sweet Spanish Long Day Onions - Non-GMO Heirloom & Untreated Vegetable Seeds to Plant an Outdoor Home Grown Veggie Garden (1 Pack) : Vegetable Plants : Patio, Lawn & Garden

Review: Good germination rate! - Started germinating in about 48 hours, looking forward to a good harvest!
Review: Great germination. - I'm successfully growing in the ground and in a pot. Doing well and am harvesting. Reminds me more of a chive because mine are very slender, but they may be way too closely planted. It's not easy spreading those tiny seeds! Even being slender, they have great flavor. Will grow again for fall. 😊

## Features

- Growth Cycle: Long Day Yellow Sweet Spanish onions require long daylight hours for bulb formation, typically needing 14-16 hours of daylight. They are best suited for regions in the higher latitudes, like the northern U.S. and Canada.
- Flavor Profile: These onions are known for their sweet, mild flavor compared to other onion varieties. They have a high sugar content which contributes to their sweetness, making them excellent for caramelizing or eating raw in salads.
- Size and Appearance: They grow quite large, often reaching sizes that can exceed 1 pound each. They have a golden-yellow skin with a white or slightly yellow flesh inside. The bulbs are globe-shaped with a firm texture.
- Storage: While they are sweet and thus less pungent than storage onions, they don't store as long. They can last for a few months if kept in a cool, dark, well-ventilated place, but they are generally recommended for consumption relatively soon after harvest.
- Quality: All Onion seeds packaged by Seed Needs are intended for the current and the following growing seasons. All seeds are stored in a temperature controlled facility that is free of significant amounts of moisture.
- Quantity: Seed Needs offers generous quantities. You can share with friends and family, or you can save the extra seeds until the following season, if properly stored.
- Packets: Each seed packet displays an artful illustration of the variety to be grown, as well as detailed seed sowing information on the reverse side. They measure 3.5" wide by 5" tall.
- Promise: Seed Needs will never knowingly supply GMO based seed products. The vast majority of our seeds are open pollinated & heirloom, with the exception of a few hybrids.
- Germination: Seed Needs packets contain some of the freshest seed available. Direct from the growers. If sown correctly, you will begin seeing results in only a matter of days.
- Freshness: All seeds are packaged in tear resistant and moisture resistant packaging. This keeps the seeds a whole lot fresher than the competitions selection!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B005L9ULSQ |
| Best Sellers Rank | #7,214 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #164 in Vegetable Plants & Seeds |
| Brand | Seed Needs |
| Color | White |
| Customer Reviews | 4.2 4.2 out of 5 stars (616) |
| Expected Blooming Period | No Blossoms |
| Expected Plant Height | 20 Inches |
| Expected Planting Period | Early Spring / Fall |
| Item Weight | 1.76 ounces |
| Item model number | B005L9ULSQ |
| Manufacturer | Seed Needs |
| Material Feature | GMO Free, Heirloom |
| Moisture Needs | Consistent Watering |
| Number of Pieces | 450 |
| Product Care Instructions | Sowing info included on every seed packet. |
| Product Dimensions | 3.5 x 5 x 0.05 inches |
| Soil Type | Loose / Well-Drained / Loamy |
| Special Feature | Fresh, Heirloom, Non-GMO, Untreated Seed |
| Style | White Sweet Spanish |
| Sunlight Exposure | Full Sun |
| UPC | 682962475494 |
| USDA Hardiness Zone | 3,4,5,6,7,8,9,10 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Seed Needs
- **Color:** White
- **Expected Blooming Period:** No Blossoms
- **Expected Planting Period:** Early Spring / Fall
- **Material Feature:** GMO Free, Heirloom
- **Product Care Instructions:** Sowing info included on every seed packet.
- **Special Feature:** Fresh, Heirloom, Non-GMO, Untreated Seed
- **Sunlight Exposure:** Full Sun
- **USDA Hardiness Zone:** 3,4,5,6,7,8,9,10
- **Unit Count:** 1.0 Count

## Images

![Seed Needs Onion Seeds for Planting White Sweet Spanish Long Day Onions - Non-GMO Heirloom & Untreated Vegetable Seeds to Plant an Outdoor Home Grown Veggie Garden (1 Pack) - Image 1](https://m.media-amazon.com/images/I/819NHEgfCPL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good germination rate!
*by M***K on February 3, 2026*

Started germinating in about 48 hours, looking forward to a good harvest!

### ⭐⭐⭐⭐⭐ Great germination.
*by S***S on July 21, 2024*

I'm successfully growing in the ground and in a pot. Doing well and am harvesting. Reminds me more of a chive because mine are very slender, but they may be way too closely planted. It's not easy spreading those tiny seeds! Even being slender, they have great flavor. Will grow again for fall. 😊

### ⭐⭐⭐⭐⭐ Buy it, buy it, buy it!!!!
*by C***E on January 31, 2025*

I never write reviews but I just had to. I’ve ordered several different seed packets from different brands just to see which ones I’m going to stick with for my 2025 garden. I’m starting my seedlings indoors in trays and I got about 800 cells full of different ones. Let me tell you.. when I dumped this little packet out, by far, I was shocked of how much you get! It’s a great price, they look like healthy seeds and again.. you get A LOT!!! I’ll come back to let you know how germination went.. happy gardening yall!!

## Frequently Bought Together

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-02-14*