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weed seed identification kits

Yes! International shipping times vary by carrier and destination. Standard international shipping typically takes 5-10 business days to reach your country and then must clear customs (timeline varies by country).

If you still have questions, contact us prior to collecting your samples. We’re here to help you to properly collect samples for analysis.

There are a number of reasons. 1) Taking a sample from a cotyledon leaf is the fastest way to identify the gender of your seedlings. 2) There is no THC in cotyledon leaves making samples legal to send in the mail. Our tests were designed to be in compliance with the Controlled Substances Act.


Phylos will no longer sell the Plant Sex Test and the Genotype Test after June 30, 2021. Phylos will continue to accept samples and process tests until September 30, 2021. Full customer account access, sex test results, and genotype reports will all remain available through our website for the foreseeable future.

Delays in fulfillment and test results may occur between June 21 through June 29, 2021.

No. Please return the card with 1 blank quadrant. We do not offer refunds for unused tests. Never tamper with the card by cutting it.

Expedited shipping options are available upon request for an additional fee.

Scroll down for additional information about plant and fungal species identification by DNA barcoding

Diagnostics like Plant DNA Sex/Gender Identification streamline growing from seed by quickly identifying plant gender using only a small DNA sample collected from a leaf. You can easily collect DNA samples using our kits, then simply mail them to our lab for testing. Results are delivered electronically roughly 2-5 business days after we receive your samples.

Our Plant DNA Collection Kits are designed to obtain one sample each which minimizes chance of cross-contamination during the sample collection process. We also include positive and negative controls with every batch of samples.

Powdery Mildew Screening:

Works on all plant species that you can collect a leaf sample from using our kits (papaya, berries, cereals as well as other fruits and vegetables).